Chain homotopy pullbacks and pushouts
Wong, Y. L.
Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 23 (1982), p. 269-278 / Harvested from Numdam
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@article{CTGDC_1982__23_3_269_0,
     author = {Wong, Y. L.},
     title = {Chain homotopy pullbacks and pushouts},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     volume = {23},
     year = {1982},
     pages = {269-278},
     mrnumber = {675338},
     zbl = {0503.55014},
     language = {en},
     url = {http://dml.mathdoc.fr/item/CTGDC_1982__23_3_269_0}
}

Wong, Y. L. Chain homotopy pullbacks and pushouts. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 23 (1982) pp. 269-278. http://gdmltest.u-ga.fr/item/CTGDC_1982__23_3_269_0/

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