@article{GDZPPN002106280,
title = {A counterexample to the theorem of Beppo Levi in three dimensions.},
journal = {Inventiones mathematicae},
volume = {96},
year = {1989},
pages = {181-184},
zbl = {0688.14012},
url = {http://dml.mathdoc.fr/item/GDZPPN002106280}
}
Spivakovsky, Mark. A counterexample to the theorem of Beppo Levi in three dimensions.. Inventiones mathematicae, Tome 96 (1989) pp. 181-184. http://gdmltest.u-ga.fr/item/GDZPPN002106280/