@article{10_4064_cm96_2_10,
     author = {Manfred Dugas and Shalom Feigelstock},
     title = {A-Rings},
     journal = {Colloquium Mathematicum},
     pages = {277--292},
     publisher = {mathdoc},
     volume = {96},
     number = {2},
     year = {2003},
     doi = {10.4064/cm96-2-10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm96-2-10/}
}