@article{10_4153_CJM_2011_040_7,
     author = {Nowak, Adam and Stempak, Krzysztof},
     title = {Negative {Powers} of {Laguerre} {Operators}},
     journal = {Canadian journal of mathematics},
     pages = {183--216},
     year = {2012},
     volume = {64},
     number = {1},
     doi = {10.4153/CJM-2011-040-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2011-040-7/}
}