[1] Evgeniy Krastev, Petko Kovachevachev, Dimitar Tcharaktchiev, Simeon Abanos, Using QR Code for Uniform Representation of Content in Cross-border Exchange of ePrescriptions in the EU, 31th Medical Informatics Europe conference (MIE 2021), May 29 – 31 (2021), Athens, Greece, pp. 684 – 68, SJR=0.3, Q3. DOI:10.3233/SHTI210259

[2] Nisheva-Pavlova M., Mihaylov I., Hadzhiyski S., Vassilev D. Ontology-Based Decision Support System for Dietary Recommendations for Type 2 Diabetes Mellitus. In: Paszynski M., Kranzlmüller D., Krzhizhanovskaya V.V., Dongarra J.J., Sloot P.M. (eds) Computational Science – ICCS 2021.Lecture Notes in Computer Science, vol 12744. Springer, Cham. (2021), pp 735-741 IF=1.36, SJR=0.249, Q3. DOI: 10.1007/978-3-030-77967-2_61

[3] Tony Boiadjiev, George Boiadjiev, Kamen Delchev, Ivan Chavdarov, Roumen Kastelov, "Orthopedic Bone Drilling Robot ODRO – basic characteristics and areas of applications" (In book chapter: Medical Robotics ISBN: 978-3-902613-18-9, E-ISBN: 978-953-51-5820-2) IntechOpen (March 19th 2021), open access (Web of Science Core Collection (BKCI), Crossref, Google Scholar, WorldCat, BASE, EBSCO, Open AIRE, CNKI Scholar, RePEc, ExLibris SFX) IF=0.02, SJR=0.101. DOI: 10.5772/intechopen.96768

[4] Maria Nisheva-Pavlova, Stoyan Hadzhiyski, Iliyan Mihaylov, Dimitar Vassilev, Implementation of an ontology-based decision support system for dietary recommendations for diabetes mellitus, Proceedings of the Information Systems and Grid Technologies (ISGT2021) Edited by: Vladimir Dimitrov, Vasil Georgiev, http://ceur-ws.org/Vol-2933/, May 28 – 29 (2021) pp. 144-154. SJR=0.18

[5] Nikola Kirilov, Elena Kirilova, Evgeniy Krastev, Using Machine Learning to Predict Bone Mineral Densi-ty from Dual-energy X-ray Absorptiometry Images of the Lumbar Spine, Proceedings of the Information Systems and Grid Technologies (ISGT2021) Edited by: Vladimir Dimitrov, Vasil Georgiev, http://ceur-ws.org/Vol-2933/, May 28 – 29 (2021). pp. 220-226. SJR=0.18

[6] Kalinka Kaloyanova, Ina Naydenova, Zlatinka Kovacheva, Addressing Data Quality in Healthcare, Proceedings of the Information Systems and Grid Technologies (ISGT2021) Edited by: Vladimir Dimitrov, Vasil Georgiev, http://ceur-ws.org/Vol-2933/, May 28 – 29 (2021). pp. 155-164. SJR=0.18

[7] Mihaylov I, Kańduła M, Krachunov M, Vassilev D. A novel framework for horizontal and vertical data integration in cancer studies with application to survival time prediction models. Biol Direct. 2019 Nov 21;14(1):22. doi: 10.1186/s13062-019-0249-6. PMID: 31752974; PMCID: PMC6868770. IF=2.913, SJR=1.52, Q1, Citations: 26

[8] Mihaylov I., Nisheva M., Vassilev D. (2018) Machine Learning Techniques for Survival Time Prediction in Breast Cancer. In: Agre G., van Genabith J., Declerck T. (eds) Artificial Intelligence: Methodology, Systems, and Applications. AIMSA 2018. Lecture Notes in Computer Science, vol 11089. Springer, Cham. https://doi.org/10.1007/978-3-319-99344-7_17 IF=1.36, SJR=0.249, Q3, Citations: 3

[9] Mihaylov, I.; Nisheva, M.; Vassilev, D. Application of Machine Learning Models for Survival Prognosis in Breast Cancer Studies. Information, MDPI, 2019, 10, 93. https://doi.org/10.3390/info10030093 IF=2.38, SJR=0.35, Q3, Citations: 8

[10] Serafimova K., Mihaylov I., Vassilev D., Avdjieva I., Zielenkiewicz P., Kaczanowski S. (2020) Using Machine Learning in Accuracy Assessment of Knowledge-Based Energy and Frequency Base Likelihood in Protein Structures. In: Krzhizhanovskaya V.V. et al. (eds) Computational Science – ICCS 2020. ICCS 2020. Lecture Notes in Computer Science, vol 12139. Springer, Cham. https://doi.org/10.1007/978-3-030-50420-5_43 IF=1.36, SJR=0.249, Q3, Citations: 1

[11] M. Nisheva-Pavlova, S. Hadzhiyski, I. Mihaylov, I. Avdjieva and D. Vassilev, "Linking Data for Ontology Based Advising in Healthcare," 2020 International Conference Automatics and Informatics (ICAI), IEEE Xplore, 07 January 2021, pp. 1-5, doi: 10.1109/ICAI50593.2020.9311382. Citations: 1

[12] Mihaylov I., Nisheva-Pavlova M., Vassilev D. (2019) An Approach for Semantic Data Integration in Cancer Studies. In: Rodrigues J.M.F. et al. (eds) Computational Science – ICCS 2019. ICCS 2019. Lecture Notes in Computer Science, vol 11538. Springer, Cham. https://doi.org/10.1007/978-3-030-22744-9_5, IF=1.36, SJR=0.249, Q3 Citations: 2

[13] Zhelyazkova M, Yordanova R, Mihaylov I, Kirov S, Tsonev S, Danko D, Mason C, Vassilev D. Origin Sample Prediction and Spatial Modeling of Antimicrobial Resistance in Metagenomic Sequencing Data. Front Genet. 2021 Mar 4;12:642991. doi: 10.3389/fgene.2021.642991. PMID: 33763122; PMCID: PMC7983949. IF=4.27, SJR=1.413, Q2 Citations: 1

[1] Tcharaktchiev D, Krastev E, Petrossians P, Abanos S, Kyurkchiev H, Kovatchev P. “Cross-Border Exchange of Clinical Data Using Archetype Concepts Compatible with the International Patient Summary”. Stud Health Technol Inform. IOS Press 2020 Jun 16; 270:552-556., doi: 10.3233/SHTI200221. PMID: 32570444 https://pubmed.ncbi.nlm.nih.gov/32570444/ SCOPUS, SJR 2019 0.440(open access)

[2] Evgeniy Krastev, Petko Kovatchev, Dimitar Tcharaktchiev, Simeon Abanos, “Primary Use Case Implementation of International Patient Summary on openEHR Platform”, Proc. of 12th International Conference e-Health 2020 (EH 2020), Computer Science and Information Systems Series, pp. 167- 174, IADIS Press, ISBN: 978-989-8704-18-4, (open access) http://www.iadisportal.org/digital-library/iadis-international-conference-e-health-eh SCOPUS (pending approval)

[3] Krastev E, Tcharaktchiev D, Markov E. “System of Criteria for Treatment Evaluation of Acromegaly in Bulgaria”. Stud Health Technol Inform. 2020 Jun;272 413-416. doi:10.3233/shti200583. PMID: 32604690, http://ebooks.iospress.nl/publication/54683, SCOPUS, SJR 2019 0.440(open access)

[4] Evgeniy Krastev, Dimitar Tcharaktchiev, Petko Kovatchev, Simeon Abanos, “International Patient Summary Standard Based on Archetype Concepts” International Journal on Advances in Life Sciences, ISSN 1942-2660 vol. 12, no. 1 & 2, year 2020, 34 :46, http://www.iariajournals.org/life_sciences/ SCOPUS, SJR 2019 0.140(open access)

[5] Evgeniy Krastev, Dimitar Tcharaktchiev, Kalinka Kaloyanova, Lyubomir Kirov, Petko Kovatchev, Simeon Abanos, Nonka Mateva: Standards Based Adaptation of Clinical Documents for Interoperability of e-Health Services, Proceedings of the Information Systems and Grid Technologies (ISGT 2020), Sofia, Bulgaria, May 29 – 30, 2020, pp. 14-29, ISSN 1613-0073 CEUR-WS.org, online CEUR-WS/Vol-2656/paper2.pdf, SCOPUS, SJR 2019 0.18 (open access)

[6] Maria Nisheva, Hristo Georgiev and Pavel Pavlov, “Building a Semantic Repository for Outpatient Sheets”, Proceedings of the Information Systems and Grid Technologies (ISGT 2020), Sofia, Bulgaria, May 29– 30, 2020, pp. 14-29, ISSN 1613-0073 CEUR-WS.org, online CEUR-WS/Vol-2656/paper3.pdf , SCOPUS, SJR 2019 0.18(open access)

[7] Kalinka Kaloyanova, “Modeling Data Consistency in Electronic Healthcare Based on Standards”, Proceedings of Information and Communication Technologies in Organization and Society (ICTO2020) (https://icto2020.webs.com/ ) November 5th and 6th, Springer Paris La Défense, France 2020, Lecture Notes in Information Systems and Organization, Springer indexed in LNISO, SCOPUS. SJR 2019 0.13(in print).

[8] Maria Nisheva-Pavlova , Stoyan Hadzhiyski , Iliyan Mihaylov, Irena Avdjieva, Dimitar Vassilev, “Linking Data for Ontology Based Advising in Healthcare”, Proceedings of ICAI' 2020 (http://www.tu-varna.bg/icai/), 1-3 October 2020, Varna, Bulgaria IEEE 2020 , indexed in IEEE Xplore, SCOPUS (in print).

[9] Elena Kirilova, Nikola Kirilov, Svilen Todorov, Nikolay Nikolov, M.Nikolov, E. Krustev, “Evaluation of Scoliotic Women with Osteoporosis of the Lumbar Spine Through DXA”, Osteoporosis International, vol:31, issue:10, 2020, ISSN (print):0937-941X, ISSN (online):1433-2965, , Ref, Web of Science, IF (3.8642 - 2019), SCOPUS, SJR (1.367 - 2019), SCOPUS Quartile: Q1 (https://www.scimagojr.com/journalsearch.php?q=1645 ), (in print)

[10] Nikola Kirilov, Elena Kirilova, Svilen Todorov, Nikolay Nikolov, Evgeniy Krustev, “Evaluation of scoliotic women with osteoporosis of the lumbar spine through dual-energy X-ray absorptiometry”, Osteoporosis International, vol:31, issue:10, 2020, ISSN (print):0937-941X, ISSN (online):1433-2965, Ref, Web of Science, IF (3.864 - 2019), Web of Science Quartile: Q1 (2020), SCOPUS, SJR (3.917 - 2019), SCOPUS Quartile: Q1 (https://www.scimagojr.com/journalsearch.php?q=1645 ) (in print)

[11] Петко Ковачев, “Моделиране на електронни рецепти в българското здравеопазване”, Доклад на 20-та Юбилейна Асамблея на ИМАБ (https://www.imab-bg.org/ ), 18 - 21 октомври 2020

[12] Симеон Абанос; Евгений Кръстев “Управление на данни от клинични пътеки на openEHR платформа“ Доклад на 20-та Юбилейна Асамблея на ИМАБ (https://www.imab-bg.org/ ), 18 - 21 октомври 2020

[13] P. Kovachev and E. Krastev, "Modelling and Management of ePrescriptions on openEHR Platform in Bulgarian eHealth", in The Ninth International Conference on Global Health Challenges (25- 29 October), Nice, France, 2020. Available: http://www.thinkmind.org/articles/global_health_2020_1_30_78003.pdf . [retrieved: October, 2020]. ISSN: 2308-4553 (ThinkMind Digital Library open access)

[14] S. Abanos, E. Krastev and D. Tcharaktchiev, "Management of Clinical Concepts in Bulgarian Healthcare Using openEHR Specifications", in The Ninth International Conference on Global Health Challenges (25- 29 October), Nice, France, 2020. Available: http://www.thinkmind.org/articles/global_health_2020_1_20_78002.pdf . [retrieved: October, 2020]. ISSN: 2308-4553 (ThinkMind Digital Library open access)

[15] D. Tcharaktchiev, E. Krastev, E. Markov and I. Ivanov, "Semantic Interoperability of Medical Information Systems and Scientific Repositories", in The Ninth International Conference on Global Health Challenges (25- 29 October), Nice, France, 2020. Available: http://www.thinkmind.org/articles/global_health_2020_1_10_78001.pdf. [retrieved: October, 2020]. ISSN: 2308-4553 (ThinkMind Digital Library open access)

[16] Kalinka Kaloyanova, “Improving Medical Data Modeling Using Standards” In the book: Knowledge, Languages, Models), ISBN:978-954-452-062-5, INCOMA Ltd, 2020, pp.122-129

[17] Iliyan Mihaylov, Maria Nisheva-Pavlova, Dimitar Vassilev. An Approach for Semantic Data Integration in Cancer Studies. In: Rodrigues J. et al. (eds) Computational Science – ICCS 2019. ICCS 2019. Lecture Notes in Computer Science, vol 11538. Springer, Cham (2019) ISSN: 0302-9743

[18] Kalinka Kaloyanova, Evgeniy Krastev and Emanuela Mitreva. Extracting Data from General Practitioners' XML Reports in Bulgarian Healthcare to Comply with ISO/EN 13606. In Proceedings of the 9th Balkan Conference on Informatics (BCI'19), George Eleftherakis, Milena Lazarova, Adelina Aleksieva-Petrova, and Antoniya Tasheva (Eds.). ACM, New York, NY, USA, Article 3, 5 pages. DOI: https://doi.org/10.1145/3351556.3351578 ISBN: 978-1-4503-7193-3 (2019)

[19] Evgeniy Krastev, Dimitar Tcharaktchiev, Lyubomir Kirov, Petko Kovatchev, Simeon Abanos and Alexandrina Lambova. "Software Implementation of the EU Patient Summary with Archetype Concepts", In Proceedings of GLOBAL HEALTH 2019, The Eighth International Conference on Global Health Challenges, Porto, Portugal, from September 22, 2019 to September 26, 2019 pp. 8-13 ISSN: 2308-4553, ISBN: 978-1-61208-742-9 (http://www.thinkmind.org/download.php?articleid=global_health_2019_1_30_70059)