TY - JOUR TI - Invariance, asymptotic behavior and stability properties for ordinary differential equations PY - 1980 AU - Onuchic, Nelson AU - Pavlu, Luiz Carlos T2 - Tohoku Mathematical Journal SN - 0040-8735 DO - 10.2748/tmj/1178229638 UR - https://doi.org/10.2748/tmj/1178229638 PP - Sendai VL - 32 SP - 217-224 ER -