@article{105136, author = {V\'aclav Havel}, title = {Ternary halfgroupoids and coordinatization (Preliminary communication)}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {008}, year = {1967}, pages = {569-580}, zbl = {0192.26401}, mrnumber = {0228404}, language = {en}, url = {http://dml.mathdoc.fr/item/105136} }
Havel, Václav. Ternary halfgroupoids and coordinatization (Preliminary communication). Commentationes Mathematicae Universitatis Carolinae, Tome 008 (1967) pp. 569-580. http://gdmltest.u-ga.fr/item/105136/
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