T︠S︡ifrovye filʹtry v ėlektrosvi︠a︡zi i radiotekhnike /
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Golʹdenberg, L. M.(Lev Moiseevich)
Moskva : Radio i svi︠a︡zʹ,
1982.
Bibliography.
John and Ljubica Erickson collection.
Digital filters (Mathematics)