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Dyfyniad Arddull ChicagoLions, J.-L, and Enrico Magenes. Non-homogeneous Boundary Value Problems and Applications.v.3. Berlin, New York: Springer-Verlag, 1973.
Dyfyniad MLALions, J.-L, and Enrico Magenes. Non-homogeneous Boundary Value Problems and Applications.v.3. Springer-Verlag, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.