Laine Ilpo Nevanlinna theory and complex differential equations - Berlin Walter De Gruyter 1991 - 341p. cm. - De Gruyter studies in mathematics; 15 . ISBN: 3110134225 Standard No.: 2381 Source: Textual Subjects--Topical Terms: Analysis Hilbert Space Operator TheoryMathematics Dewey Class. No.: B33,3, N3