TY - BOOK AU - Petkov, V. AU - Lazarov, R. TI - INTEGRAL EQUATIONS AND INVERSE PROBLEMS SN - 0582077664 U1 - 515.45 PY - 1991/// CY - Harlow PB - Longman KW - Integral Equations -- Congresses KW - Inverse Problems -- Congresses N1 - Papers Presented At The International Conference On Integral Equations And Inverse Problems, Held In Varna, Bulgaria, 1989 ER -