pseudocategory
- https://arxiv.org/pdf/math/0604549v1.pdf 2006
- http://www.kurims.kyoto-u.ac.jp/EMIS/journals/JHRS/volumes/2006/n1a3/v1n1a3hl.pdf 2006
- http://137.158.44.70/academics/postgrad/graduatethesis/PhD_Nelson_Martins-Ferreira.pdf 2008 thesis
- https://arxiv.org/pdf/0902.3626v2.pdf 2014
- http://www.tac.mta.ca/tac/volumes/30/38/30-38.pdf 2015
最後のものを除いて、著者はN. MARTINS-FERREIRA。
pseudocategory = pseudo doublecategory = double pseudo-category