The Roman Martyrology. Transl. by the Archbishop of Baltimore. Last Edition, According to the Copy Printed at Rome in 1914. Revised Edition, with the Imprimatur of His Eminence Cardinal Gibbons. Baltimore: John Murphy Company, 1916. pp. 231-232.
This was entered into the menologion with the blessing of His Holiness Patriarch Kirill I of Moscow, on November 28, 2011. See also: (in Russian): Алексий Бортсурманский (Russian Wikipedia).
