@article{Geelen2016, author = "J Geelen and Geoffrey Whittle", title = "{Certifying non-representability of matroids over prime fields}", year = "2016", month = "3", url = "https://openaccess.wgtn.ac.nz/articles/journal_contribution/Certifying_non-representability_of_matroids_over_prime_fields/12212528", doi = "10.26686/wgtn.12212528.v1" }