Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://www.psy.msu.ru/people/krivitsky/krivitsky2000.pdf Äàòà èçìåíåíèÿ: Tue May 21 17:40:59 2013 Äàòà èíäåêñèðîâàíèÿ: Thu Feb 27 22:28:49 2014 Êîäèðîâêà:

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Educational Technology & Society 3 (3) 2000 ISSN 1436-4522

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