O nekotorykh differen︠t︡sialʹnykh uravneni︠i︡akh matematicheskoĭ fiziki ime︠i︡ushchikh prilozhenie v technicheskikh voprosakh - Krylov, A. N. (Alekseĭ Nikolaevich), 1863-1945 (Nauchno-tekhnicheska︠i︡a literatura., 1933)