@article{CTGDC_1978__19_4_337_0,
     author = {Bauer, Friedrich W.},
     title = {Some relations between shape constructions},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     pages = {337--367},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {19},
     number = {4},
     year = {1978},
     mrnumber = {515162},
     zbl = {0404.54028},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CTGDC_1978__19_4_337_0/}
}