Wacław Sierpiński, as quoted in Rotkiewicz, A. (1972), "W. Sierpiński's works on the theory of numbers", Rendiconti del Circolo Matematico di Palermo, Serie II, 21 (1–2): 5–24, doi:10.1007/BF02844227, MR0323676: "In July 1941 one of my oldest students Stanislaw Ruziewicz was murdered. He was a retired full professor of Jan Kazimierz University in Lvov, the last rector of Foreign Trade Academy in Lvov, an outstanding mathematician and an excellent teacher."
doi.org
Wacław Sierpiński, as quoted in Rotkiewicz, A. (1972), "W. Sierpiński's works on the theory of numbers", Rendiconti del Circolo Matematico di Palermo, Serie II, 21 (1–2): 5–24, doi:10.1007/BF02844227, MR0323676: "In July 1941 one of my oldest students Stanislaw Ruziewicz was murdered. He was a retired full professor of Jan Kazimierz University in Lvov, the last rector of Foreign Trade Academy in Lvov, an outstanding mathematician and an excellent teacher."
Rossowski, Stanisław (1861-1940) Red (1932-06-08), Gazeta Lwowska. 1932, nr 128, retrieved 2022-07-20{{citation}}: CS1 maint: numeric names: authors list (link)
