# Approaches to four types of bilevel programming problems with nonconvex nonsmooth lower level programs and their applications to newsvendor problems

> Research article (Mathematical Methods of Operations Research, 2017) · cited 20× · AI/ML

**Wikidata**: [openalex:W2613212636](https://www.wikidata.org/wiki/openalex:W2613212636)  
**Source**: https://4ort.xyz/entity/approaches-to-four-types-of-bilevel-programming-problems-with-nonconvex-nonsmooth-lower-level-programs-and-their-applica