1. Determinant versus permanent;Agrawal,2006
2. Permanent vs. determinant;Ban,2014
3. Recent developments and open problems in the theory of permanents;Bapat;Math. Stud.,2007
4. On spectrum and per-spectrum of graphs;Borowiecki;Publ. Inst. Math. (Belgr.),1985
5. Computing the permanental polynomial of a multigraph;Borowiecki;Discuss. Math.,1982