000 00366nam a2200145Ia 4500
008 180612s9999||||xx |||||||||||||| ||und||
020 _a516
041 _aen
082 _a515.7242
100 _aDavise , E. B
245 0 _aSpectral theory and differential operators
260 _aCambridge
_bcambridge university press
_c1995
300 _a(vi),182P
942 _cPR
999 _c46804
_d46804