@article{10_4064_sm192_2_4,
     author = {B. Bongioanni and J. L. Torrea},
     title = {What is a {Sobolev} space for the {Laguerre} function systems?},
     journal = {Studia Mathematica},
     pages = {147--172},
     year = {2009},
     volume = {192},
     number = {2},
     doi = {10.4064/sm192-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm192-2-4/}
}