@article{TAC_2008_21_a5,
     author = {N. Martins-Ferreira},
     title = {Weakly {Mal'cev} categories},
     journal = {Theory and applications of categories},
     pages = {91--117},
     publisher = {mathdoc},
     volume = {21},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2008_21_a5/}
}