[Z.G. Frenkel' and the student movement of the end of the 19th and beginning of the 20th centuries].
D006666:History of Medicine; D009787:Occupational Medicine / Q000266:history*; D012425:Russia (Pre-1917); D012952:Societies / Q000266:history*; D013334:Students
Z.G. Frenkel' i studencheskoe dvizhenie kontsa XIX--nachala XX veka