COZMA, D. and DRUȚA, R. (2018) “INTEGRABILITY CONDITIONS FOR LOTKA-VOLTERRA DIFFERENTIAL SYSTEM WITH A BUNDLE OF TWO INVARIANT STRAIGHT LINES”, Acta et Commentationes Exact and Natural Sciences, 6(2), pp. 31-50. doi: 10.36120/2587-3644.v6i2.31-50.