@杂项{zbMATH03090479，作者={Krasnosel'skij，M.A.和Ladyzhenskij，L.A.}，标题={Die{Struktur}des{Spektrums}定位器不均匀{Operatoren}}，年份={1954}，语言={俄语}，HowPublished={Tr.{Moskovsk}。{垫}。{杂色}。3, 321-346 (1954).},zbMATH={3090479}，Zbl={0056.34002}}