TY  - JOUR
AU  - Havel, Václav
TI  - Ternary halfgroupoids and coordinatization (Preliminary communication)
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1967
SP  - 569
EP  - 580
VL  - 08
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1967__8_4_a0/
LA  - en
ID  - CMUC_1967__8_4_a0
ER  -