TY - JOUR AU - J. Winkelmann TI - A Splitting Criterion for Two-Dimensional Semi-Tori JO - Journal of Lie Theory PY - 2004 SP - 555 EP - 561 VL - 14 IS - 2 UR - http://geodesic.mathdoc.fr/item/JOLT_2004_14_2_a12/ ID - JOLT_2004_14_2_a12 ER -