Mustăţa, Costică. “Selections Associated to McShane’s Extension Theorem for Lipschitz Functions”. Rev. Anal. Numér. Théor. Approx. 21, no. 2 (August 1, 1992): 135–145. Accessed April 25, 2024. https://ictp.acad.ro/jnaat/journal/article/view/1992-vol21-no2-art6.