@article{BAG_1981__12_138203,
     author = {G. RICHTER},
     title = {Strong purity in lattices},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {7--16},
     publisher = {mathdoc},
     volume = {12},
     year = {1981},
     url = {http://geodesic.mathdoc.fr/item/BAG_1981__12_138203/}
}