@article{EXMATH_2006_2006_1_a11,
     author = {Hajduk, Adam},
     title = {Una nueva demostraci\'on del lema de {Gabriel.}},
     journal = {Extracta mathematicae},
     pages = {191-195},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_2006_2006_1_a11/}
}