References
- Combinatorial Matrix Theory R. A. Brualdi;H. J. Ryser
- Bull. Amer. Math. Soc. v.67 The permanent function as inner product M. Marcus;M. Newman
- Ann. Math. v.675 Inequalities for the permanent function M. Marcus;M. Newman
- Permanents H. Minc
- Math. Assoc. of America Combinatorial Mathematics H. J. Ryser
- Theoret. Comput. Sci. v.8 The complexity of computing the permanent L. G. Valiant