Vol-2642⫷ Vol-2643 ⫸Vol-2644
urn:nbn:de:0074-2643-0


Vol-2643/paper37⫷Vol-2643/paper38⫸Vol-2643/paper39
Kateryna V. VlasenkoSergei V. VolkovDaria A. KovalenkoIryna V. SitakOlena O. ChumakAlexander A. Kostikov

Web-based online course training higher school mathematics teachers