@article{10_4171_dm_343,
     author = {Claude Cibils and Mar{\'\i}a Julia Redondo and Andrea Solotar},
     title = {Fundamental group of {Schurian} categories and the {Hurewicz} isomorphism},
     journal = {Documenta mathematica},
     pages = {581--595},
     year = {2011},
     volume = {16},
     doi = {10.4171/dm/343},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/343/}
}