Kelley, J. L.; Spanier, Edwin H. Euler characteristics. (English) Zbl 0164.33401 Pac. J. Math. 26, 317-339 (1968). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 10 Documents Keywords:general algebraic structures × Cite Format Result Cite Review PDF Full Text: DOI