Рассказывает Ганс фон Калтенборн
Источник: Kaltenborn, H. v. (Hans). (circa 1964-1966). Oral history interview with H. v. Kaltenborn circa 1964-1966. Columbia Digital Library Collections [Columbia University Libraries]. [Oral histories sound recording]. Retrieved from https://doi.org/10.7916/d8-77ex-g550