[Centenary of the birth of Petr Petrovich Popov].
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Dukhanina
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Tagi-Zade
D049672:History, 19th Century; D049673:History, 20th Century; D010274:Parasitology / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
100 let so dnia rozhdeniia Petra Petrovicha Popova.