000 00489n a2200157ua 4500
040 _aP K Kelkar Library, IIT Kanpur
082 _a531.3823
_bM42 pt.3
245 0 _aMathematical problems in wave propagation theory
_cedited by V. M. Babich
260 _aNew York
_bConsultants Bureau
_c1970
300 _a107p
440 _aSeminars In Mathematics / Edited By V. A. Steklov
_v
650 _aMathematics
700 _aBabich, V. M.
700 _a
997 _aA28554 C A11001 C
999 _c459190
_d459190