1. Cohomology as a derived functor of derivations;Barr;Trans. Am. Math. Soc.,1966
2. Homological Algebra;Cartan,1956
3. Hyperalgèbres et groupes des Lie formels;Cartier,1955
4. Integration in free groups;Chen;Ann. Math.,1951
5. Iterated integrals and exponential homomorphisms;Chen,1954