@article{JCA_1994_1_2_a1,
     author = {V. Chiado Piat and F. Serra Cassano},
     title = {Some {Remarks} {About} the {Density} of {Smooth} {Functions} in {Weighted} {Sobolev} {Spaces}},
     journal = {Journal of convex analysis},
     pages = {135--142},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {1994},
     url = {http://geodesic.mathdoc.fr/item/JCA_1994_1_2_a1/}
}