%0 Journal Article %A Angeltveit, Vigleik %T Topological Hochschild homology and cohomology of A∞ ring spectra %J Geometry & topology %D 2008 %P 987-1032 %V 12 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.2140/gt.2008.12.987/ %R 10.2140/gt.2008.12.987 %F GT_2008_12_2_a7