1. Actualit\'{e}s Scientifiques et Industrielles [Current Scientific and Industrial Topics], No. 1189;Bourbaki, N.,1953
2. Theory of positive linear dependence;Davis, Chandler;Amer. J. Math.,1954
3. Maximal convex sets;Hammer, Preston C.;Duke Math. J.,1955
4. The structure of semispaces;Klee, V. L., Jr.;Math. Scand.,1956