Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1966__16_4_a0, author = {Johnson, Arnold A.}, title = {Reflectors and {Coreflectors} on {Diagrams}}, journal = {Mathematica slovaca}, pages = {309--319}, publisher = {mathdoc}, volume = {16}, number = {4}, year = {1966}, mrnumber = {0210762}, zbl = {0219.18001}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1966__16_4_a0/} }
Johnson, Arnold A. Reflectors and Coreflectors on Diagrams. Mathematica slovaca, Tome 16 (1966) no. 4, pp. 309-319. http://geodesic.mathdoc.fr/item/MASLO_1966__16_4_a0/