Masal'tsev, L. A., Масальцев, Л. А., & Масальцев, Л. А. (2005). On Isometric Immersion of Three-Dimensional Geometries $SL_2$, $Nil$ and $Sol$ into a Four-Dimensional Space of Constant Curvature. Institute of Mathematics, NAS of Ukraine.
Chicago-Zitierstil (17. Ausg.)Masal'tsev, L. A., Л. А Масальцев, und Л. А Масальцев. On Isometric Immersion of Three-Dimensional Geometries $SL_2$, $Nil$ and $Sol$ into a Four-Dimensional Space of Constant Curvature. Institute of Mathematics, NAS of Ukraine, 2005.
MLA-Zitierstil (8. Ausg.)Masal'tsev, L. A., et al. On Isometric Immersion of Three-Dimensional Geometries $SL_2$, $Nil$ and $Sol$ into a Four-Dimensional Space of Constant Curvature. Institute of Mathematics, NAS of Ukraine, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.