Pai, Devidas. “On Lower Semicontinuity of the Restricted Center Multifunction”. Rev. Anal. Numér. Théor. Approx. 38, no. 1 (February 1, 2009): 83–99. Accessed November 23, 2024. https://ictp.acad.ro/jnaat/journal/article/view/2009-vol38-no1-art8.