[1]
GorbachukM. L., LyantseV. É., MarkovskiiA. I., MikhailetsV. A., and SamoilenkoA. M., “Yaroslav Borisovich Lopatinsky (09.11.1906 - 03.10.1981)”, Ukr. Mat. Zhurn., vol. 58, no. 11, pp. 1443-1445, Nov. 2006.