@article{GRSME_1998_1998_1_a16,
     author = {Zeilberger, Doron},
     title = {La astrolog{\'\i}a combinatoria del {Rabino} {Abraham} {Ibn} {Ezra.}},
     journal = {La Gaceta de la Real Sociedad Matem\'atica Espa\~nola},
     pages = {382-385},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1998},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GRSME_1998_1998_1_a16/}
}