The definition of the coherence relations in non-abelian cohomology is a difficult problem studied by many authors. The purpose of this paper is to simplify the solution provided by the author which uses the notion of sequences of fibred categories and to apply the resulting theory to higher divisors and Chow theory.
"Gerbes for the Chow." Afr. Diaspora J. Math. (N.S.) 11 (2) 65 - 77, 2011.