000			00323nam a2200109Ia 4500
008			190829s9999||||xx |||||||||||||| ||und||
100			_aTitchmarsh, E.C
245		0	_aEigenfunction Expansions Associated With Second Order Differential Equations
260			_bClarendon Press _aOxford _c1946
650			_aExpansions
942			_cBK
999			_c6858 _d6858