TURUTA, Silvia. 2019. “LOTKA-VOLTERRA CUBICDIFFERENTIAL SYSTEMS WITH (1:-2)- SINGULARITY AND INVARIANT AFFINE STRAIGHT LINES OF TWO DIRECTIONS OF TOTAL ALGEBRAIC MULTIPLICITY SIX”. Acta Et Commentationes Exact and Natural Sciences 2 (2), 71-87. https://doi.org/10.36120/2587-3644.v2i2.71-87.