@article{MZ_1996__223_3_174929,
     author = {Otto Kerner and Frank Lukas},
     title = {Elementary modules.},
     journal = {Mathematische Zeitschrift},
     pages = {421--434},
     publisher = {mathdoc},
     volume = {223},
     number = {3},
     year = {1996},
     zbl = {0909.16008},
     url = {http://geodesic.mathdoc.fr/item/MZ_1996__223_3_174929/}
}