Kamińska, A., L. Maligranda, and L. E. Persson. “Indices, Convexity and Concavity of Calderón-Lozanovskii Spaces”. MATHEMATICA SCANDINAVICA 92, no. 1 (March 1, 2003): 141–160. Accessed April 6, 2025. https://www.mscand.dk/article/view/14398.