Volnovye ︠i︡avleni︠i︡a v ėlektricheskikh mashinakh; priblizhennye metody rascheta - Kaganov, Z. G. (Zosim Grigorʹevich) (Redak︠t︡sionno-izdatelʹskiĭ otdel Sibirskogo otd- ni︠i︡a AN SSSR, 1964)