Author: Nauchno-prakticheskai︠a︡ konferent︠s︡ii︠a︡, posvi︠a︡shchennai︠a︡ 75-letii︠u︡ so dni︠a︡ rozhdenii︠a︡ doktora selʹskokhozi︠a︡ĭstvennykh nauk, professora Ivana Alekseevicha Alekseeva (2003 Ĭoshkar-Ola, Russia)