TY - BOOK AU - Sagan,Hans TI - Boundary and eigenvalue problems in mathematical physics SN - 0486661326 : AV - QA401 .S24 1989 U1 - 530.1/5535 20 PY - 1989/// CY - New York PB - Dover Publications KW - Mathematical physics KW - Boundary value problems KW - Eigenvalues N1 - Reprint. Originally published: New York : Wiley, 1961; Includes bibliographies and index UR - http://www.loc.gov/catdir/description/dover031/89035689.html ER -