Metod ėkvivalentnykh sistem v teorii rasprostranenii︠a︡ voln /
Nikolʹskiĭ, Ė. V.(Ėrik Vasilʹevich)
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Shemi︠a︡kin, Evgeniĭ Ivanovich.
Novosibirsk : Izd-vo "Nauka," Sibirskoe otd-nie,
1982.
Includes index.
Bibliography: p. 225-[226]
John and Ljubica Erickson collection.
Wave-motion, Theory of.
Differential equations.