00435nam a2200121Ia 4500082002000000100004400020245008500064260004800149300003000197490004300227500000500270700003800275  a515.35bP844.IE  aPorter, David and Stirling, David S. G.  aIntegral equations; a practical treatment from spectral theory to applicationsb  aCambridgebCambridge University Pressc1990  axi, 372p. Index, Appendix  aCambridge texts in Applied Mathematics  a  aStirling, David S. G. ; jt. auth.