%0 Journal Article %A Li, Jie %T Piecewise hereditary algebras under field extensions %J Czechoslovak Mathematical Journal %D 2021 %P 1025-1034 %V 71 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2021.0183-20/ %R 10.21136/CMJ.2021.0183-20 %G en %F 10_21136_CMJ_2021_0183_20