Chlup, Otokar, 1875-1965 (Personal Name)
- Chlup, O. (Otokar), 1875-1965
- Chlup, Otakar, 1875-1965
Topical problems of Communist ed. at basic schools, 1978: t.p. (Otokar Chlup) p. 11 (O. Chlup)
LC data base, 10-8-85 (hdg.: Chlup, Otokar, 1875-1965)
Duševní vývoj dětský, 1912: title page (Otakar Chlup)
Wikipedie, otevřená encyklopedie, March 6, 2019: Otokar Chlup page (Otokar Chlup; born 30 August 1875 in Boskovice; died 14 May 1965 in Prague; Czech educationalist; interested in moral education and the history of education) https://cs.wikipedia.org/wiki/Otokar_Chlup