Media type: E-Article Title: Subgradient projection methods extended to monotone bilevel equilibrium problems in Hilbert spaces Contributor: Anh, Pham Ngoc; Tu, Ho Phi Published: Springer Science and Business Media LLC, 2021 Published in: Numerical Algorithms, 86 (2021) 1, Seite 55-74 Language: English DOI: 10.1007/s11075-020-00878-w ISSN: 1017-1398; 1572-9265 Origination: Footnote: