[1] J.  BAIR: 
Sur un théorème de séparation de M. Vlach. Bulletin de la Société Royale des Sciences de Liège 41 (1972), 11-13. 
MR 0306874 | 
Zbl 0233.46021[2] J. BAIR F. JONGMANS: 
Séparation france dans un espace vectoriel. Bulletin de la Société Royale des Sciences de Liège 39 (1970), 474-477. 
MR 0276709[3] R. DEUMLICH K. H. ELSTER R. NEHSE: 
Recent Results on Separation of Convex Sets. Math. Operationsforsch. Statist., Ser. Optimization 9 (1978), 273-296. 
MR 0506930[4] V. KLEE: Separation and support properties of convex sets. in A.V. Balakrishnan (ed.): Control theory and the Calculus of Variation, Academic Press 1969, 235-303.
[5] G. KOTHE: 
Topologische lineare Räume. Springer 1966. 
MR 0194863[6] F. LEMPIO: Separation und Optimierung in linearen Räumen. Thesis,  Hamburg 1971.
[7] U. MEYER zu HÖRSTE: Die Beschreibung der Menge der effizienten Punkte durch Bayeslösungen. Thesis, Bonn 1980.
[9] J. VANGELDЀRE: 
Frank Separation of two Convex Sets and Hahn-Banach Theorem. Journal of Mathematical Analysis and Applications 60 (1977), 36-46. 
MR 0470658[10] J. VANGELDЀRE: Séparation et Propriété D'Intersection Relative. Bulletin de la Société Royale des Sciences de Liège 49 (1980), 144-163.
[11] M. VLACH: 
A separation theorem for finite families. Comment. Math. Univ. Carolinae 12 (1971), 655-660. 
MR 0290126 | 
Zbl 0229.52008