"Schwingung." . . "Théories non linéaires." . . . . "Systèmes non linéaires." . . "Vibration." . . "Vibrazioni." . . "Nichtlineare Schwingung." . . "Nichtlineare Mechanik." . . . . . . . . . . . . . . . . "Electronic books" . "Electronic books"@en . . . "Non-linear vibrations" . "Non-linear vibrations"@en . . . . "Non-Linear Vibrations" . . . . . . . . . . . "Non-linear Vibrations" . . . . . . . . . "Vibrations." . .