TY - BOOK AU - O'Malley, Robert E TI - Singular perturbation methods for ordinary differential equations PB - Springer-Verlag PY - 1991 T2 - Applied mathematical sciences VL - v. 89 EP - viii, 225 p. UR - http://ci.nii.ac.jp/ncid/BA13106970 SN - 038797556X SN - 354097556X SN - 9781461269687 ER -