1. Catalogue of snarks of the orders 10–30, electronic document, Universität Bielefeld, Bielefeld, 1998.
2. A Boolean algebra approach to construction of snarks, in Graph Theory, Combinatorics and Applications, , and (Eds), Wiley: New York, 1991, 493–524.
3. On (k,d)-colorings and fractional nowhere-zero flows
4. Balanced valuations and flows in multigraphs