New Variational Techniques in Mathematical Physics Lectures given at a Summer School of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Bressanone (Bolzano), Italy, June 17-26, 1973

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Calculus of Variations, Classical and Modern Lectures given at a Summer School of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Bressanone (Bolzano), Italy, June 10-18, 1966

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Applications of Methods of Functional Analysis to Problems in Mechanics: Joint Symposium IUTAM/IMU held in Marseille, Sept. 1-6, 1975 (Lecture Notes in Mathematics, 503) (English and French Edition)

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Non-linear Continuum Theories in Mechanics and Physics and their Applications Lectures given at a Summer School of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Bressanone (Bolzano), Italy, September 3-11, 1969

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Non-Linear Mechanics Lectures given at a Summer School of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Bressanone (Bolzano), Italy, June 4-13, 1972

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Problems in Non-Linear Analysis Lectures given at a Summer School of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Varenna (Como), Italy, August 20-29, 1970

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Equazioni differenziali non lineari Lectures given at a Summer School of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Varenna (Como), Italy, August 31-September 8, 1964

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Proprietà di media e teoremi di confronto in fisica matematica Lectures given at a Summer School of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Bressanone (Bolzano), Italy, June 30- July 9, 1963

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Nonsmooth Mechanics of Solids (CISM International Centre for Mechanical Sciences, 485)