@article{MASLO_2004_54_5_a7,
     author = {Schmid, Wolfgang A.},
     title = {Arithmetic of block monoids},
     journal = {Mathematica slovaca},
     pages = {503--526},
     year = {2004},
     volume = {54},
     number = {5},
     mrnumber = {2114621},
     zbl = {1108.11084},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_2004_54_5_a7/}
}