Vakaliuk Т. А., and Marienko М. В. “EXPERIENCE OF USING CLOUD-ORIENTED OPEN SCIENCE SYSTEMS IN THE PROCESS OF TEACHING AND PROFESSIONAL DEVELOPMENT OF NATURAL AND MATHEMATICAL TEACHERS”. Information Technologies and Learning Tools, vol. 81, no. 1, Feb. 2021, pp. 340-55, doi:10.33407/itlt.v81i1.4225.