Lippmann, H. (1972). Extremum and variational principles in mechanics: Course held at the Department of General Mechanics, Sept. - Oct. 1970. Springer.
Chicago-Zitierstil (17. Ausg.)Lippmann, Horst. Extremum and Variational Principles in Mechanics: Course Held at the Department of General Mechanics, Sept. - Oct. 1970. Wien [u.a.]: Springer, 1972.
MLA-Zitierstil (9. Ausg.)Lippmann, Horst. Extremum and Variational Principles in Mechanics: Course Held at the Department of General Mechanics, Sept. - Oct. 1970. Springer, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.