1. A∞-coalgebra structure maps that vanish on H∗(K(π,n);Zp);Berciano;Forum Math.,2010
2. H. Cartan, Algèbres d’Eilenberg–MacLane. Séminaire H. Cartan, 1954/55, (exposé 2 al 11), 1956.
3. On the groups H(π,n), II;Eilenberg;Ann. of Math.,1954
4. DG Hopf algebras with steenrod ith coproducts;Kadeishvili;Proc. A. Razmadze Math. Inst.,1999
5. J.-L. Loday, The diagonal of the stasheff polytope, in: Higher Structures in Mathematics and Physics, Progress in Mathematics Series, Birkhäuser (in press) arXiv:0710.0572.