Media type: E-Article Title: Upper and lower solution estimates in unilateral viscoelastodynamics Contributor: Liolios, A. A. Published: Springer Science and Business Media LLC, 1987 Published in: Acta Mechanica, 66 (1987) 1-4, Seite 275-278 Language: English DOI: 10.1007/bf01184300 ISSN: 0001-5970; 1619-6937 Keywords: Mechanical Engineering ; Computational Mechanics Origination: Footnote: