00358nam a2200121Ia 4500082002000000100004200020245003000062260003300092300001900125490005300144500000500197700003400202  a515.72bP855.IS  aPeschal, Jurgen and Trubowitz, Eugene  aInverse spectral theoryb  aBostonbAcademic Pressc1987  ax, 192p. Index  aPure and Applied Mathematics (Academic)v v. 130  a  aTrubowitz, Eugene ; jt. auth.