[Sergeĭ Mikhaĭlovich Kulagin (on his 80th birthday)].
D049673:History, 20th Century; D008829:Microbiology / Q000266:history; D008986:Mongolia; D009031:Moscow; D010274:Parasitology / Q000266:history
Sergeĭ Mikhaĭlovich Kulagin (k 80-letiiu so dnia rozhdeniia).