TY  - JOUR
AU  - Trch, Milan
TI  - Groupoids and the associative law VIIA. (SH-groupoids of type (A, B, A) and their semigroup distances)
JO  - Acta Universitatis Carolinae. Mathematica et Physica
PY  - 2007
SP  - 43
EP  - 54
VL  - 48
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AUCMP_2007__48_1_a3/
LA  - en
ID  - AUCMP_2007__48_1_a3
ER  -