@article{RSMUP_1970__44__1_0,
     author = {Higman, D. G.},
     title = {Coherent configurations {I}},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {1--25},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {44},
     year = {1970},
     mrnumber = {325420},
     zbl = {0279.05025},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1970__44__1_0/}
}