@article{TAC_2003_11_a16,
     author = {J.R.B. Cockett and J. Koslowski and R.A.G. Seely and R.J. Wood},
     title = {Modules},
     journal = {Theory and applications of categories},
     pages = {375--396},
     year = {2003},
     volume = {11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2003_11_a16/}
}