Inequivalent representations of matroids having no U<sub>3, 6</sub>-minor.

James F. Geelen Dillon Mayhew Geoff Whittle Inequivalent representations of matroids having no U<sub>3, 6</sub>-minor. 55-67 2004 92 J. Comb. Theory, Ser. B 1 http://dx.doi.org/10.1016/j.jctb.2003.12.005 db/journals/jct/jctb92.html#GeelenMW04