@article{ADM_2005_4_a1,
     author = {V. Frider},
     title = {Normal functors in the coarse category},
     journal = {Algebra and discrete mathematics},
     pages = {16--27},
     year = {2005},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2005_4_a1/}
}