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@article{MOMA_1980__89_177972, author = {Urban Cegrell}, title = {Some {Characterizations} of {L-regular} {Points.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {289--292}, publisher = {mathdoc}, volume = {89}, year = {1980}, zbl = {0429.32023}, url = {http://geodesic.mathdoc.fr/item/MOMA_1980__89_177972/} }
Urban Cegrell. Some Characterizations of L-regular Points.. Monatshefte für Mathematik, Tome 89 (1980), pp. 289-292. http://geodesic.mathdoc.fr/item/MOMA_1980__89_177972/