1. Graph theory and crystal physics;Kasteleyn,1967
2. Kasteleyn's theorem and arbitrary graphs;Little;Canad. J. Math.,1973
3. A characterization of convertible (0, 1)-matrices;Little;J. Combin. Theory Ser. B,1975
4. C. H. C. Little, F. Rendl, and, I. Fischer, Towards a characterisation of Pfaffian graphs, Discrete Math, to appear.
5. Matching Theory;Lovász,1986