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@article{MZ_1980__174_173009, author = {Neil S. Trudinger}, title = {On the {First} {Eigenvalue} of {Non-Uniformly} {Elliptic} {Boundary} {Value} {Problems.}}, journal = {Mathematische Zeitschrift}, pages = {227--232}, publisher = {mathdoc}, volume = {174}, year = {1980}, zbl = {0439.35053}, url = {http://geodesic.mathdoc.fr/item/MZ_1980__174_173009/} }
Neil S. Trudinger. On the First Eigenvalue of Non-Uniformly Elliptic Boundary Value Problems.. Mathematische Zeitschrift, Tome 174 (1980), pp. 227-232. http://geodesic.mathdoc.fr/item/MZ_1980__174_173009/