@article{CMUC_1997_38_4_a0,
     author = {Dehornoy, Patrick},
     title = {Multiple left distributive systems},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {615--625},
     year = {1997},
     volume = {38},
     number = {4},
     mrnumber = {1601664},
     zbl = {0943.20070},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1997_38_4_a0/}
}