BIBLIOGRAPHY CONTRIBUTOR A.P. Yushkevicha First name A.P. Last name Yushkevicha Bibliography entries by this contributor al-Kāshī, Jamshīd ibn Mas‘ūd. 1956. Klyuch Aritmetiki, Traktat Ob Okruzhnosti. Eds. V. G. Segalya, A.P. Yushkevicha, and B. A. Rozenfel’da. Trans. B. A. Rozenfel’da. Moscow: N/A.
