Mikhlin, S. G. The problem of the minimum of a quadratic functional / S. G. Mikhlin ; translated by A. Feinstein. - San Francisco : Holden-Day, 1965. - ix, 155 p. : - Holden-Day series in mathematical physics . ISBN: ISBNSc1364 Subjects--Topical Terms: Calculus of variations. Dewey Class. No.: 515.64 / Pr