[1] L. Kučera J. Nešetřil A. Pultr:
Complexity of dimension three and some related edge-covering characteristic of graphs. to appear in Theoretical Comp. Science.
MR 0566696
[2] L. Lovasz J. Nešetřil A. Pultr: On a product dimension of graphs. to appear in J. Comb. Theory (B).
[3] J. Nešetřil A. Pultr:
A Dushnik-Miller type dimension of graphs and its complexity. Proc. of the Conf. on Fundamentals of Computation Theory, Lecture Notes in Comp. Science 56, Springer 1977, 482-493.
MR 0491363
[4] J. Nešetřil A. Pultr: Product and other representations of graphs and related characteristics, submitted to Proceed. of the Confer. Algebraic methods and graph theory, Szeged 1978.