Maria Hirszbein : an (in)visible figure of Polish cinema of the 1920s and 1930s = Maria Hirszbein : (nie)widoczna postać polskiego kina lat 1920. i 1930. / Radkiewicz Małgorzata // Camera Obscura. - 2021 vol. 36 no. 3 (108), p. 61-83. - ISSN 0270-5346. - eISSN 1529-1510