1. Achdou, Y., Maday, Y., and Widlund, O. B. (1998). Iterative substructuring preconditioners for mortar element methods in two dimensions. SIAM J. Num. Anal. 36(2), 551-580
2. Ben Belgacem, F., and Maday, Y. (1993). Non-conforming spectral element method for second order elliptic problems in 3D. East-West J. Num. Math. 1(4), 235-252
3. Ben Belgacem, F., and Maday, Y. (1997). The mortar element method for three dimensional finite elements. Mod´elisation Math´ematique et Analyse Num´erique 31, 289-302
4. Bernardi, C., Debit, N., and Maday, Y. (1990). Coupling finite element and spectral methods: first results. Math. Comp. 54(189), 21-39
5. Bernardi, C., Maday, Y., and Patera, A. T. (1994). A new nonconforming approach to domain decomposition: the mortar element method. In Brezis, H., and Lions, J. L. (eds.), Non-linear Partial Differential Equations and their Applications, Vol. 11, Pitman/Wiley, London/New York, pp. 13-51