Observatoire de Haute-Provence, CNRS F-04870 Saint-Michel l'Observatoire, France E-mail:firstname.lastname@example.org
Abstract A combined sample has been constructed of supernovae of types II or Ib,c in our Galaxy and in external galaxies nearer than 4 Mpc. It is concluded that the luminosity function remains relatively flat down to MV = -13 to -14. Supernova rates obtained from traditional extragalactic samples should probably be increased by a factor of 1.5 - 2. A relatively simple observational programme could yield more definite answers in five to ten years time.
Keywords : supernovae : general -- ISM : supernova remnants