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Elsevier
Annales de l'Institut Henri Poincaré - Nonlinear Analysis

Lachand-Robert, T., & Peletier, M. (2001). An example of non-convex minimization and an application to Newton's problem of the body of least resistance. Annales de l'Institut Henri Poincaré - Nonlinear Analysis, 18(2), 179–198.