Sauvigny, Friedrich Partial differential equations I : foundations and integral representations [2nd rev. ed.] - 2nd rev. and enl. Ed. - Heidelberg Springer 2012 - xv, 447p. ; 23.5 cm. - Universitext . ISBN: 9781447129806 Subjects--Topical Terms: Mathematics Dewey Class. No.: 515.353 / SAU