@article{RCM_1970__4_181576,
     author = {Guillerlmo Restrepo},
     title = {On the convergence of gelerkin approximations},
     journal = {Revista colombiana de matematicas},
     pages = {1--6},
     publisher = {mathdoc},
     volume = {4},
     year = {1970},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RCM_1970__4_181576/}
}