A Note on Direct Products and $$\hbox {Ext}^{1}$$ Ext 1 Contravariant Functors
Crossref DOI link: https://doi.org/10.1007/s40840-015-0167-4
Published Online: 2015-08-11
Published Print: 2016-01
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Pop, Flaviu
Valculescu, Claudiu
Text and Data Mining valid from 2015-08-11