Reihe International Series of Numerical MathematicsFranco Maceri × Unilateral Problems in Structural Analysis IVProceedings of the fourth meeting on Unilateral Problems in Structural Analysis, Capri, June 14–16, 1989Franco MaceriSpringer BaseleBook2013 Unilateral Problems in Structural Analysis IVProceedings of the fourth meeting on Unilateral Problems in Structural Analysis, Capri, June 14–16, 1989Franco MaceriSpringer BaselSoftcover2012 Unilateral Problems in Structural Analysis IVProceedings of the fourth meeting on Unilateral Problems in Structural Analysis, Capri, June 14–16, 1989Franco MaceriSpringer BaselHardcover1991