@unpublished{Pukelsheim2012,
  author  = {Friedrich Pukelsheim},
  title   = {An L1-Analysis of the Iterative Proportional Fitting Procedure},
  institution = {Mathematisch-Naturwissenschaftlich-Technische Fakult{\"a}t},
  series    = {Preprints des Instituts f{\"u}r Mathematik der Universit{\"a}t Augsburg},
  number    = {2012-02},
  year    = {2012},
}