@article{TAC_1999_5_a9,
     author = {Anders Kock and Gonzalo E. Reyes},
     title = {Aspects of fractional exponent functors},
     journal = {Theory and applications of categories},
     pages = {251--265},
     publisher = {mathdoc},
     volume = {5},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_1999_5_a9/}
}