Porter, T. Generalised shape theory. (English) Zbl 0274.55011 Proc. R. Ir. Acad., Sect. A 74, 33-48 (1974). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 4 Documents MSC: 55P99 Homotopy theory 55N20 Generalized (extraordinary) homology and cohomology theories in algebraic topology 18G99 Homological algebra in category theory, derived categories and functors PDFBibTeX XMLCite \textit{T. Porter}, Proc. R. Ir. Acad., Sect. A 74, 33--48 (1974; Zbl 0274.55011)