@article{GAMA_1979_1979_1_a4,
     author = {Arenzana Hern\'andez, V{\'\i}ctor and  Buera P\'erez, Pedro},
     title = {Producto escalar.},
     journal = {Gaceta matem\'atica},
     pages = {67-88},
     publisher = {mathdoc},
     volume = {31},
     number = {3-4},
     year = {1979},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GAMA_1979_1979_1_a4/}
}