%0 Journal Article %A Norihiro Hanihara %T Cluster categories of formal DG algebras and singularity categories %J Forum of Mathematics, Sigma %D 2022 %V 10 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1017/fms.2022.30/ %R 10.1017/fms.2022.30 %G en %F 10_1017_fms_2022_30