Methods of Stellar Space-Density Analyses: A Retrospective Review
  Stellar space density analyses, once a very active area of astronomical
research, involved transforming counts of stars to given limiting magnitudes in
selected areas of the sky into graphs of the number of stars per cubic parsec
as a function of distance. Several methods of computing the transformation have
been published, varying from manual spreadsheets to computer programs based on
very sophisticated mathematical techniques for deconvolving integral equations.
This paper revisits these techniques and compares the performance of seven of
them published between 1913 and 2003 as applied to both simulated and real
data.
