E. V. Starus, “The classification of $GL(2,R)$-orbits' dimensions for system $s(0,2)$ and the factorsystem $s(0,1,2)/GL(2,R)$”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2004, no. 1, 120–123
E. V. Starus, “Invariant conditions for the dimensions of the $GL(2,R)$-orbits for one differential cubic system”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2003, no. 3, 58–70
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