Broman, Arne, 1913- Introduction to partial differential equations from fourier series to boundary-value problems / by Arne Broman. - Reading, Mass. : Addison-Wesley, 1970. - vi, 183 p. : ill. ; 21 cm. Includes bibliographical references (p. 174-175) and index. Subjects--Topical Terms: Differential equations, Partial.