@article{RRACEFN_1986_1986_1_a5,
     author = {Ochoa, J.},
     title = {Matrices sim\'etricas en clase de matrices enteras.},
     journal = {Revista de la Real Academia de Ciencias Exactas, F{\'\i}sicas y Naturales},
     pages = {57-65},
     year = {1986},
     volume = {80},
     number = {1-2},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/RRACEFN_1986_1986_1_a5/}
}