@article{JFAA_2001__7_4_59682,
     author = {S.M. Gomes and A.K. Kushpel and J. Levesley},
     title = {Approximation in {L...} {Sobolev} {Spaces} on the {2-Sphere} by {Quasi-Interpolation.}},
     journal = {The journal of Fourier analysis and applications [[Elektronische Ressource]]},
     pages = {283--296},
     publisher = {mathdoc},
     volume = {7},
     number = {4},
     year = {2001},
     zbl = {0986.41009},
     url = {http://geodesic.mathdoc.fr/item/JFAA_2001__7_4_59682/}
}