APseqG, APsetG See open-shell paper.

APr2G http://www.sciencedirect.com/science/article/pii/S2210271X12004963

AP1roG http://pubs.acs.org/doi/ipdf/10.1021/ct300902c

Mixed discriminant Ryser algorithm http://www.sciencedirect.com/science/article/pii/0024379589900098

Permanent Ryser algorithm https://arxiv.org/abs/0904.3251

Rectangular Borchardt permanent http://arxiv.org/abs/math/0003072

Permanent/mixed discriminant derivatives http://repository.uwyo.edu/ela/vol27/iss1/18/