Nonlinear two-dimensional longitudinal and shear waves in solidsPeipman, Tõnu; Valdek, Urmas; Engelbrecht, JüriAcustica1992 / p. 84-94

Nonlinear waves in a layer with energy influxEngelbrecht, Jüri; Peipman, TõnuWave motion1992 / 16, p. 173-181