GOSHCHANSKAYA, Olga A. The impact of the German and French art schools on the drawing of Konstantin Istomin. Actual Problems of Theory and History of Art, [S. l.], v. 2, p. 466–471, 2012. Disponível em: https://publ.actual-art.org/aptha/article/view/10087. Acesso em: 14 mar. 2025.