@article{GAMA_1979_1979_1_a1,
     author = {Hermida Alonso, Jos\'e \'Angel},
     title = {Nota sobre anillos caracter{\'\i}sticos.},
     journal = {Gaceta matem\'atica},
     pages = {7-11},
     publisher = {mathdoc},
     volume = {31},
     number = {1-2},
     year = {1979},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GAMA_1979_1979_1_a1/}
}