TY  - JOUR
AU  - Zurab Janelidze
AU  - Thomas Weighill
TI  - Duality in non-abelian algebra I. From cover relations to Grandis 
ex2-categories
JO  - Theory and applications of categories
PY  - 2014
SP  - 315
EP  - 331
VL  - 29
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TAC_2014_29_a10/
LA  - en
ID  - TAC_2014_29_a10
ER  -