Marienko, M. 2021. THE PRINCIPLES, METHODS AND APPROACHES TO THE FORMATION OF CLOUD-BASED SYSTEMS OF OPEN SCIENCE IN THE PROCESS OF TEACHING AND PROFESSIONAL DEVELOPMENT OF TEACHERS. Physical and Mathematical Education. 27, 1 (Apr. 2021), 62–66. DOI:https://doi.org/10.31110/2413-1571-2021-027-1-010.