@article{MM2_1993__81_3-4_155893,
     author = {V. Dlab and I. \'Agoston and E. Luk\'acs},
     title = {Homological {Characterization} of {Lean} {Algebras.}},
     journal = {Manuscripta mathematica},
     pages = {141--148},
     publisher = {mathdoc},
     volume = {81},
     number = {3-4},
     year = {1993},
     zbl = {0814.16005},
     url = {http://geodesic.mathdoc.fr/item/MM2_1993__81_3-4_155893/}
}