Supplementary Reading

 Find these papers on MathSciNet (I think you have to be on a UVM machine to get access to it).

[Ai] M. Aigner, The Penrose polynomial of a plane graph, Math. Ann., 307 (1997) 173-189.

[B.i] A. Bouchet, Isotropic Systems, Europ. J. Combinatorics, 8 (1987) 231-244.

[B.t] A. Bouchet, Tutte-Martin Polynomials and Orienting Vectors of Isotropic Systems, Graphs and Combinatorics, 7 (1991) 235-252.

[J.t] F. Jaeger, Tutte Polynomials and Link Polynomials, Proceedings of the American Mathematical Society, vol.103, 2, (1988), 647-654.

[LV.e] M. Las Vergnas, Eulerian Circuits of 4-Valent Graphs imbedded in Surfaces, Colloquia Mathematica Societatis Janos Bolyai, 25, Algebraic Methods in Graph Theory, Szeged (Hungary), 1978.

[LV.oe] M. Las Vergnas, On Eulerian Partitions of Graphs, Graph Theory and Combinatorics, R.J. Wilson, ed., Research Notes in Mathematics 34, Pitman Advanced Publishing Program, San Francisco, London, Melbourne, (1979), 62-65.

[LV.ot] M. Las Vergnas, On the Evaluation at (3,3) of the Tutte Polynomial of a Graph, Journal of Combinatorial Theory, Series B, 44 (1988) 367-372.

[P.a] R. Penrose, Applications of Negative Dimensional Tensors, Combinatorial Mathematics and its Applications; Proceedings of a conference held at the Mathematical Institue, Oxford, 1969, London, New York, Academic Press, (1971), 221-244.

[T1] W. T. Tutte, A contribution to the theory of chromatic polynomials, Cand. J. Math. 6 (1953) 80-81.

[T2] W. T. Tutte, On dichromatic polynomials, J. Combin. Theory, 2 (1967) 301.

[Y] D. Yetter, On graph invariants given by linear recurrence relations, J. Combin. Theory, Ser. B 48 (1990) 6-18.