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Thurston, Paul 4-dimensional Busemann \(G\)-spaces are 4-manifolds. (English) Zbl 0864.57021 Differ. Geom. Appl. 6, No. 3, 245-270 (1996). Reviewer: I.Pop (Iaşi) MSC: 57N13 51K10 53C70 PDFBibTeX XMLCite \textit{P. Thurston}, Differ. Geom. Appl. 6, No. 3, 245--270 (1996; Zbl 0864.57021) Full Text: DOI