On the Expressive Power of Planar Perfect Matching and Permanents of Bounded Treewidth Matrices. - Uffe Flarup; Pascal Koiran; Laurent Lyaudet (ISAAC, 2007)

On the Expressive Power of Permanents and Perfect Matchings of Matrices of Bounded Pathwidth/Cliquewidth (Extended Abstract). - Uffe Flarup; Laurent Lyaudet (CSR, 2008)

On the Expressive Power of Permanents and Perfect Matchings of Matrices of Bounded Pathwidth/Cliquewidth. - Uffe Flarup; Laurent Lyaudet (Theory Comput. Syst., 2010)