%0 Journal Article %A Leicht, J. B. %T Axiomatic Proof of J. Lambek's Homological Theorem %J Canadian mathematical bulletin %D 1964 %P 609-613 %V 7 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1964-056-4/ %R 10.4153/CMB-1964-056-4 %F 10_4153_CMB_1964_056_4