Mustăţa, C. “The Extension of Starshaped Bounded Lipschitz Functions”. Anal. Numér. Théor. Approx. 9, no. 1 (February 1, 1980): 93–99. Accessed November 22, 2024. https://ictp.acad.ro/jnaat/journal/article/view/1980-vol9-no1-art12.