KOCK, A.; KRISTENSEN, L.; MADSEN, I. Cochain Functors for General Cohomology Theories II. Mathematica Scandinavica, Berkeley, CA, United States, v. 20, p. 151–176, 1967. DOI: 10.7146/math.scand.a-10828. Disponível em: https://journals.msp.org/mscand/article/view/2497. Acesso em: 25 jul. 2026.