@article{MASLO_1976__26_3_a5,
     author = {Beehler, Jerry R. and Johanson, Arnold},
     title = {Semigroups and the structure of categories},
     journal = {Mathematica slovaca},
     pages = {207--216},
     publisher = {mathdoc},
     volume = {26},
     number = {3},
     year = {1976},
     mrnumber = {0460408},
     zbl = {0364.20066},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1976__26_3_a5/}
}