Trevisan, Giorgio A proposito di un teorema di Petersen. (Italian) Zbl 0096.38202 Rend. Sem. Mat. Univ. Padova 30, 97-100 (1960). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:topology PDF BibTeX XML Cite \textit{G. Trevisan}, Rend. Semin. Mat. Univ. Padova 30, 97--100 (1960; Zbl 0096.38202) Full Text: Numdam EuDML