Die Kerr-Metrik in pseudokomplexer Allgemeiner Relativit\"atstheorie
  This is a master thesis concerning the search for a Kerr-type metric in the pseudocomplex General Relativity. Two different ways of deriving the standard Kerr-metric are presented and a solution for a Kerr-type metric in the pseudocomplex formalism is found. 
Thomas Sch\"onenbach
gr-qc