@article{10_4064_sm202_2_3,
     author = {Celso Mart{\'\i}nez and Antonia Redondo and Miguel Sanz},
     title = {Suitable domains
to define fractional integrals of {Weyl
} via fractional powers of
operators},
     journal = {Studia Mathematica},
     pages = {145--164},
     year = {2011},
     volume = {202},
     number = {2},
     doi = {10.4064/sm202-2-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm202-2-3/}
}