Mustăţa, Costică. “On a Theorem of Baire about Lower Semicontinuous Functions”. Rev. Anal. Numér. Théor. Approx. 37, no. 1 (February 1, 2008): 71–75. Accessed March 29, 2024. https://ictp.acad.ro/jnaat/journal/article/view/2008-vol37-no1-art8.