motivation
Dmitry G. Demidov, Yu Tzu-Lan. How Were Nonsuffixal Nouns Such as Призыв, Разгар, Отрыв Formed? A Dicussion Focuses on Direct- and Back-Formation
Russian Speech. 2021. № 3, Pages. 19 - 30
Maria M. Voznesenskaya. О внутренней форме выражения в темпе вальса
Russian Speech. 2017. № 5, Pages. 122 - 126