Nikiforova, Irina Alekseevna. “Subtraction of Accidentals: Evolution of Images in Sketches of Pyotr Dik: УДК7.036.1”. The Art of Eurasia, no. 1 (4) (January 27, 2017): 80–103. Accessed November 8, 2026. https://eurasia-art.ru/art/article/view/609.