@article{JOLT_2004_14_2_a12,
     author = {J. Winkelmann},
     title = {A {Splitting} {Criterion} for {Two-Dimensional} {Semi-Tori

<!--} {Anfang} {Autor} -->},
     journal = {Journal of Lie Theory},
     pages = {555--561},
     year = {2004},
     volume = {14},
     number = {2},
     zbl = {1063.32004},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2004_14_2_a12/}
}