000 00377nam a2200145Ia 4500
003 LDD
040 _cLDD
082 _a515.35 T53E
100 _aTitchmarsh, E.C.
245 0 _aEigenfunction expansions associated with second-order differential equations
_cE.C. Titchmarsh
260 _aLondon
_bOxford
_c1946
300 _a175p.
903 _bGifted by : insa
942 _2ddc
_cG
999 _c11010
_d11010