@article{MM2_1995__88_1_156122,
     author = {Christoff Geiss and Jos\'e A. de de Pena},
     title = {On the deformation theory of finite dimensional algebras.},
     journal = {Manuscripta mathematica},
     pages = {191--208},
     publisher = {mathdoc},
     volume = {88},
     number = {1},
     year = {1995},
     zbl = {0851.16011},
     url = {http://geodesic.mathdoc.fr/item/MM2_1995__88_1_156122/}
}