P︠i︡atnistostʹ listʹev ︠i︡achmen︠i︡a "Rinkhosporium graminikol︠i︡a" na posevakh Azovo-Chernomorskogo selek︠t︡sionnogo ︠t︡sentra - Kostylev, Aleksandr Dmitrievich (Azovo-Chernomorskoe kraevoe kn-vo, 1935)