Karl Rakos - Obituary
  Professor Dr. Karl Dragutin Rakos passed away on October 31, 2011 one day before his 86th birthday. With that the Vienna astronomical community lost a valued researcher, university teacher and co-founder of modern astrophysical research at the Institut f\"ur Astronomie of the University of Vienna. 
Andrew P. Odell
astro-ph.IM physics.hist-ph