[Nilolai Grigor'evich Olsuf'ev (on his 70th birthday)].
D004813:Epidemiology / Q000266:history; D049673:History, 20th Century; D008829:Microbiology / Q000266:history; D014586:USSR
Nikolaĭ Grigor'evich Olsuf'ev (k 70-letiiu so dnia rozhdeniia)