Globke, W.Leistner, T.2016-10-102016-10-102016Journal of Geometry and Physics, 2016; 108:83-1010393-04401879-1662http://hdl.handle.net/2440/101669Abstract not availableen© 2016 Elsevier B.V. All rights reserved.Lorentzian manifolds; Killing vector fields; Homogeneous spaces; pp-waves; Plane waves; Special holonomyJournal article003005162210.1016/j.geomphys.2016.06.0130003830070000062-s2.0-84979503593139167Leistner, T. [0000-0002-8837-5215]