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@article{JRAM_1989__401_153174, author = {Detlef M\"uller}, title = {On {Riesz} means of eigenfunction expansions for the {Kohn-Laplacian.}}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {113--121}, publisher = {mathdoc}, volume = {401}, year = {1989}, zbl = {0697.35102}, url = {http://geodesic.mathdoc.fr/item/JRAM_1989__401_153174/} }
Detlef Müller. On Riesz means of eigenfunction expansions for the Kohn-Laplacian.. Journal für die reine und angewandte Mathematik, Tome 401 (1989), pp. 113-121. http://geodesic.mathdoc.fr/item/JRAM_1989__401_153174/