[The oldest microbiologist in the world (on the 100th birthday of Prof. B.I. Kleĭn].
D049672:History, 19th Century; D049673:History, 20th Century; D008829:Microbiology / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
Stareishii mikrobiolog mira (k 100-letiiu so dnia rozhdeniia prof. B.I. Kleĭna))