Poleznye rasteni︠i︡a dikoĭ flory Bashkirii i puti ikh ra︠t︡sionalʹnogo ispolʹzovani︠i︡a - Kulagin, ︠I︡Uriĭ Zakharovich (Akademi︠i︡a nauk SSSR, Bashkirskiĭ filial, Institut biologii, 1979)