000
00272nam a2200109 4500
008
160616s 000 0
245
_a
Spectra of partial differential operators
100
_a
Schechter, Martin
500
_a
B434 L1
942
_c
BK
_2
BK3162
080
_a
517.98 SCH
999
_c
3162
_d
3162