%0 Journal Article %A Bernhard Keller %T Introduction to $A_{\infty}$-infinity algebras and modules %J Homology, homotopy, and applications %D 2001 %P 1-35 %V 3 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4310/HHA.2001.v3.n1.a1/ %R 10.4310/HHA.2001.v3.n1.a1 %G en %F HHA_2001_3_1_a1