Functional basises of centro-affine invariants for the three-dimensional quadratic differential systems. Gherştega N., Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2006, Nr. 1(48), p. 51-64.
Lie algebras of the operators and three-dimensional polynomial differential systems. Popa M., Gherştega N., Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica 2005, Nr. 2(48), p. 51-64.
Mixed comitants and GL(3,R)-orbit’s dimensions for the three-dimensional differential system. Popa M., Gherştega N., Buletinul Ştiinţific, Universitatea din Piteşti, Seria Matematică şi Informatică, Nr.9, 2003, p.149-154.
Membership in Societies and Editorial Boards
Publications in Computer Science Journal of Moldova, Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica and Quasigroups and Related Systems