On the Representability of Line Graphs. - Sergey Kitaev; Pavel Salimov; Christopher Severs; Henning Úlfarsson (Developments in Language Theory, 2011)

On the homology of the real complement of the k-parabolic subspace arrangement. - Christopher Severs; Jacob A. White 001 (J. Comb. Theory A, 2012)

Restricted non-separable planar maps and some pattern avoiding permutations. - Sergey Kitaev; Pavel Salimov; Christopher Severs; Henning Úlfarsson (Discret. Appl. Math., 2013)

The discrete Fundamental Group of the Associahedron, and the Exchange Module. - Hélène Barcelo; Christopher Severs; Jacob A. White 001 (Int. J. Algebra Comput., 2013)