by V. I. Orlov
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Analiz dinamiki prirodnykh usloviĭ i re...
Dinamicheskai︠a︡ geografii︠a︡
Rodnoi krai
Studencheskoe dvizhenie Moskovskogo univ...
Voprosy didaktiki
Zapadnai͡a︡ Sibirʹ, ocherki o prirode i ...
