Schmeidler, Werner. Linear operators in Hilbert space / Werner Schmeidler ; tr. by Jay Strum, rev. and ed. by A. Shenitzer and D. Solitar. - New York : Academic Press, 1965. - ix, 122 p. ; 21 cm. - Academic paperbacks. Mathematics . Subjects--Topical Terms: Algebras, Linear.Hilbert space.