Oskar Halecki – the advocate of Central and Eastern European countries in the International Committee on Intellectual Cooperation of the League of Nations (1922‑1925)

Studia z Dziejów Rosji i Europy Środkowo-Wschodniej, Tom 48 (Special Issue) (2013) s. 5-19
Andrzej M. Brzeziński , Marta Antoniuk (tł.)