Birgin EG, Martínez JM, Raydan M. Spectral Projected Gradient Methods: Review and Perspectives. J. Stat. Soft. [Internet]. 2014 Sep. 28 [cited 2024 Nov. 24];60(3):1-21. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v060i03