Önal, S., and Tosun Terzioglu. “A Normability Condiitionon of Locally Convex Spaces”. Revista Matemática Complutense 4, no. 1 (January 1, 1991): 55. Accessed July 30, 2026. https://revistas.ucm.es/index.php/REMA/article/view/REMA9191120055A.