Itai & Rodeh (1978). Itai, A.; Rodeh, M. (1978), "Covering a graph by circuits", Automata, Languages and Programming. ICALP 1978., Lecture Notes in Computer Science (Ausiello, G., Böhm, C. (eds)), vol. 62, Springer, pp. 289–299, doi:10.1007/3-540-08860-1_21, ISBN978-3-540-08860-8.
Huck (2000). Huck, A. (2000), "Reducible configurations for the cycle double cover conjecture", Discrete Applied Mathematics, 99 (1–3): 71–90, doi:10.1016/S0166-218X(99)00126-2.
Kochol (1996). Kochol, Martin (1996), "Snarks without small cycles", Journal of Combinatorial Theory, Series B, 67 (1) (1 ed.): 34–47, doi:10.1006/jctb.1996.0032.