Roepstorff, Gert Path integral approach to quantum physics: an introduction / Gert Roepstorff. - Berlin: Springer-Verlag, 1994. - 387 pages ; 24 cm. - Texts and monographs in physics . p. 369-381. ISBN: 3540552138 Subjects--Topical Terms: Integrals, Path.Quantum theory.