@article{TAC_2016_31_a9,
     author = {Matteo Tommasini},
     title = {Some insights on bicategories of fractions: representations and
compositions of 2-morphisms},
     journal = {Theory and applications of categories},
     pages = {257--329},
     publisher = {mathdoc},
     volume = {31},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2016_31_a9/}
}