Holmstrom DG-algebra

Toen: Finitude homotopique etc. File Toen web publ dgalgsat.pdf.

Cosimplicial versus DG rings

http://ncatlab.org/nlab/show/differential+graded+algebra

http://www.ncatlab.org/nlab/show/differential+graded+coalgebra

http://ncatlab.org/nlab/show/differential+graded+Hopf+algebra

http://www.ncatlab.org/nlab/show/model+structure+on+dg-algebras

nLab page on DG-algebra