1. Contact problems with friction;Klarbring,1984
2. Examples of nonuniqueness and nonexistence of solutions to quasi-static contact problems with friction;Klarbring;Ingenieur-Archiv,1990
3. Existence and uniqueness results for dynamic contact problems with nonlinear normal and friction interface laws;Martins;Nonlinear Analysis,1987
4. A two-degree-of-freedom “quasistatic” frictional contact problem with instantaneous jumps;Martins,1992
5. On an example of nonexistence of solution to a quasistatic frictional contact problem;Martins;European Journal of Mechanics. A/Solids,1994