@article{10_4064_cm_78_2_261_266,
     author = {Dieter Happel},
     title = {Hochschild cohomology of piecewise hereditary algebras},
     journal = {Colloquium Mathematicum},
     pages = {261--266},
     publisher = {mathdoc},
     volume = {78},
     number = {2},
     year = {1998},
     doi = {10.4064/cm-78-2-261-266},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-78-2-261-266/}
}