The Determination of Nuclear Level Densities from Experimental   Information -
  A novel Information Theory based method for determining the density of states from prior information is presented. The energy dependence of the density of states is determined from the observed number of states per energy interval and model calculations suggest that the method is sufficiently reliable to calculate the thermal properties of nuclei over a reasonable temperature range. 
B. J. Cole (Department of Physics, University of the Witwatersrand,   WITS 2050, South Africa), N. J. Davidson, H. G. Miller