Graphs with Hamiltonian balls. - Armen S. Asratian; Natalia Oksimets (Australas. J Comb., 1998)

Pk+1-Decompositions of Eulerian Graphs: Complexity and Some Solvable Cases. - Armen S. Asratian; Natalia Oksimets (Electron. Notes Discret. Math., 2003)

Euler Tours of Maximum Girth in K2n+1 and K2n, 2n. - Natalia Oksimets (Graphs Comb., 2005)