00513naa#a2200169#i#450# EN\\bibl\113102 20260119215412.1 2311-1402 20110925b2011####ek#y0engy0150####ca RUS RU Informatin technology-based cooperation between secondary schools Journal article Nizhnevartovsk Nizhnevartovsk State University 2011 2 с. Journal article local Tereshchenko Vladimir Ivanovich vestnik.nvsu.ru