Berstein, Israel Essential and inessential complexes. (English) Zbl 0178.26201 Comment. Math. Helv. 33, 70-80 (1959). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:topology PDFBibTeX XMLCite \textit{I. Berstein}, Comment. Math. Helv. 33, 70--80 (1959; Zbl 0178.26201) Full Text: DOI EuDML