@phdthesis{MENGISTU04_DISS,
   author = "G. {Mengistu Tsidu}",
   title  = "The Role of Chemistry and Transport on {NO}$_y$ Partitioning
             and Budget during {A}ustral {S}pring 2002 as derived from
	     {MIPAS} measurements",
   school = "Karlsruhe University",
   year   = "2004"   }