1. Angot, Ph, Bruneau, Ch-H, Fabrie, P.: A penalization method to take into account obstacles in an incompressible flow. Numer. Math. 81, 497–520 (1999)
2. Angot, Ph., Caltagirone, J.P.: New graphical and computational architecture concept for numerical simulation on supercomputers. Proceedings 2nd World Congress on Computational Mechanics, pages 973–976, Stuttgart, (1990)
3. Arquis, E., Caltagirone, J.P.: Sur les conditions hydrodynamiques au voisinage d’une interface milieu fluide-milieu poreux: application à la convection naturelle. C. R. Acad. Sci. Paris II 299, 1–4 (1984)
4. Beavers, G., Joseph, D.: Boundary conditions at a naturally permeable wall. J. Fluid Mech. 30, 197–207 (1967)
5. Breezi, F.: On the existence, uniqueness and approximation of saddle-point problems arising from Lagrangian problems. RAIRO Anal. Numer. 2, 129–151 (1974)