Robuta

https://www.numdam.org/item/CTGDC_1998__39_4_287_0/ On the exact completion of the homotopy category on theexact completionhomotopy category https://eudml.org/doc/212177 EuDML | On the homotopy category of Moore spaces and the cohomology of the category of abelian... on thehomotopy categorymoorespacescohomology