  The publication by Gagunashvili [arXiv:1011.0662] suffers from several
caveats: i) The method is based upon the false assumption that the median of
chi square distributed random variables is chi square distributed. ii) The
information contained in the data is not fully used, iii) It is not clear how
the uncertainties associated to the fitted parameters can be evaluated. A
correct solution of the problem is presented and results of the cited paper are
compared to results obtained using the approach described in the textbook by
Bohm and Zech. Finally, we correct false statements in the cited paper about a
section in our book.
