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@article{MAN_1970__189_162076, author = {M. NAKAI and L. SABIO}, title = {A {New} {Operator} for {Elliptic} {Equations,} and the {P-compactification} for ...u = {P} u.}, journal = {Mathematische Annalen}, pages = {242--256}, publisher = {mathdoc}, volume = {189}, year = {1970}, url = {http://geodesic.mathdoc.fr/item/MAN_1970__189_162076/} }
M. NAKAI; L. SABIO. A New Operator for Elliptic Equations, and the P-compactification for ...u = P u.. Mathematische Annalen, Tome 189 (1970), pp. 242-256. http://geodesic.mathdoc.fr/item/MAN_1970__189_162076/