Choban, M. M. Über eine deskriptive Theorie der Mengen. (Russian) Zbl 0335.54007 C. R. Acad. Bulg. Sci. 26, 449-452 (1973). MSC: 54A99 54A25 54C10 54H25 54C60 PDFBibTeX XMLCite \textit{M. M. Choban}, C. R. Acad. Bulg. Sci. 26, 449--452 (1973; Zbl 0335.54007)
Choban, M. M. Reduktionssaetze über die Existenz stetiger Schnitte. Schnitte über Untermengen der Faktorraeume topologischer Gruppen. (Russian) Zbl 0334.54008 Mat. Issled. 8, No. 4(30), 111-156 (1973). MSC: 54C65 54C60 54C10 54F45 22A05 PDFBibTeX XMLCite \textit{M. M. Choban}, Mat. Issled. 8, No. 4(30), 111--156 (1973; Zbl 0334.54008)
Taĭmanov, A. D. Über einige Arbeiten in Zusammenhang mit der deskriptiven Mengenlehre und der Topologie. (Russian) Zbl 0296.54013 Tr. Mat. Inst. Steklova 133, 203-213 (1973). MSC: 54C20 54C10 03E15 PDFBibTeX XMLCite \textit{A. D. Taĭmanov}, Tr. Mat. Inst. Steklova 133, 203--213 (1973; Zbl 0296.54013)
Wright, J. D. M. ’All operators on a Hilbert space are bounded’. (English) Zbl 0284.46007 Sem. uniform Algebras, Univ. Aberdeen 1973, 58 (1973). MSC: 46A30 47A99 46C99 03E35 03E30 03E25 03E55 PDFBibTeX XML
Kenderov, P. S. Über die Stetigkeit mehrdeutiger Abbildungen. (Russian) Zbl 0277.54003 C. r. Acad. Bulg. Sci. 26, 735-738 (1973). MSC: 54C10 54C60 PDFBibTeX XMLCite \textit{P. S. Kenderov}, C. R. Acad. Bulg. Sci. 26, 735--738 (1973; Zbl 0277.54003)
Robinson, Stephen M. Normed convex processes. (English) Zbl 0264.47018 Trans. Am. Math. Soc. 174(1972), 127-140 (1973). MSC: 47A50 15A39 54C60 46A30 65K05 52Bxx 90C99 PDFBibTeX XMLCite \textit{S. M. Robinson}, Trans. Am. Math. Soc. 174, 127--140 (1973; Zbl 0264.47018) Full Text: DOI
Hansell, Roger W. On the non-separable theory of \(k\)-Borel and \(k\)-Souslin sets. (English) Zbl 0258.54039 General Topology Appl. 3, 161-195 (1973). MSC: 54H05 54C10 03E15 PDFBibTeX XMLCite \textit{R. W. Hansell}, General Topology Appl. 3, 161--195 (1973; Zbl 0258.54039) Full Text: DOI
Tevy, Ionel; Bruteanu, Christian On some continuity notions. (English) Zbl 0254.26004 Rev. Roum. Math. Pures Appl. 18, 121-135 (1973). MSC: 26A15 54A10 54A20 54C10 PDFBibTeX XMLCite \textit{I. Tevy} and \textit{C. Bruteanu}, Rev. Roum. Math. Pures Appl. 18, 121--135 (1973; Zbl 0254.26004)
Friedler, Louis Open, connected functions. (English) Zbl 0253.54007 Can. Math. Bull. 16, 57-60 (1973). MSC: 54C10 54C60 54D05 PDFBibTeX XMLCite \textit{L. Friedler}, Can. Math. Bull. 16, 57--60 (1973; Zbl 0253.54007) Full Text: DOI
Braude, Eric John Perfect open and distinguishable multivalued maps. (English) Zbl 0245.54038 Trans. Am. Math. Soc. 182, 431-441 (1973). MSC: 54H05 54C10 54C60 54E35 PDFBibTeX XMLCite \textit{E. J. Braude}, Trans. Am. Math. Soc. 182, 431--441 (1973; Zbl 0245.54038) Full Text: DOI
Ditor, Seymour Z. Averaging operators in C(S) and lower semicontinuous sections of continuous maps. (English) Zbl 0239.46050 Trans. Am. Math. Soc. 175, 195-208 (1973). MSC: 46E15 46J10 47B99 54C10 54C60 PDFBibTeX XMLCite \textit{S. Z. Ditor}, Trans. Am. Math. Soc. 175, 195--208 (1973; Zbl 0239.46050) Full Text: DOI