[1] S. AGMON A. DOUGLIS L. NIRENBERG:
Estimates near the boundary for solutions of elliptic partial differential equations satisfying general boundary conditions I. Comm. Pure Appl. Math. 12 (1959), 623-727.
MR 0125307
[2] J. L. LIONS E. MAGENES: Problèmes aux limites non homogènes et applications. Dunod, Paris, 1968.
[3] N. G. MEYERS:
An $L^p$-estimate for the gradient of solutions of second order elliptic divergence equations. Ann. Scuola Nom. Sup. Pisa 17 (1963), 189-206.
MR 0159110
[4] J. NEČAS:
Les méthodes directes en théorie des équations elliptiques. Academia, Prague, 1967.
MR 0227584
[5] J. NEČAS:
Sur la régularité des solutions variationnelles des équations elliptiques non-linéaires d'ordre $2k$ en deux dimensions. Ann. Scuola Norm. Sup. Pisa 21 (1967), 427-457.
MR 0226467 |
Zbl 0171.09401
[6] M. SCHECHTER:
Coerciveness in $L^p$. Trans. Amer. Math. Soc. 107 (1963), 10-29.
MR 0146690
[7] L. N. SLOBODĚCKIJ:
Estimates in $L^p$ of solutions of elliptic systems. (Russian), Dokl. Akad. Nauk SSSR 123 (1958), 616-619.
MR 0106327
[8] A. ZYGMUND: Trigonometrical series. Cambridge, 1959.