TY - BOOK AU - Andersson, Stig I. and Lapidus, Michel L. AU - Lapidus, Michel L. ; jt. ed. TI - Progress in inverse spectral geometry T2 - Trends in Mathematics U1 - 516 PY - 1977/// CY - Boston PB - Birkhauser N1 - "Purchased under NBHM grant for the year 1997-98" ER -