@article{MM2_1984__47_155005,
     author = {Nikolaos Marmaridis},
     title = {Extensions of hereditary algebras.},
     journal = {Manuscripta mathematica},
     pages = {55--84},
     publisher = {mathdoc},
     volume = {47},
     year = {1984},
     zbl = {0549.16018},
     url = {http://geodesic.mathdoc.fr/item/MM2_1984__47_155005/}
}