relation: https://pure.iiasa.ac.at/id/eprint/13379/ title: Lagrangian functions and nondifferentiable optimization creator: Wierzbicki, A.P. publisher: WP-78-063 date: 1978-12 type: Monograph type: NonPeerReviewed format: text language: en identifier: https://pure.iiasa.ac.at/id/eprint/13379/1/WP-78-063.pdf identifier: Wierzbicki, A.P. (1978). Lagrangian functions and nondifferentiable optimization. IIASA Working Paper. IIASA, Laxenburg, Austria: WP-78-063