@article{MS2_1977__41_166537,
     author = {Bjarni Jonsson},
     title = {The variety covering the variety of all modular lattices.},
     journal = {Mathematica Scandinavica},
     pages = {5--14},
     publisher = {mathdoc},
     volume = {41},
     year = {1977},
     zbl = {0373.06004},
     url = {http://geodesic.mathdoc.fr/item/MS2_1977__41_166537/}
}