TY - JOUR AU - Onuchic, Nelson TI - Asymptotic equivalence between two systems of ordinary differential equations JO - Portugaliae mathematica PY - 1971 SP - 97 EP - 105 VL - 30 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1971__30_2_115145/ LA - en ID - PORMA_1971__30_2_115145 ER -