There are four items provided for the Peszeks' article, obswww06:

   1) a zipped file containing a transport file of a SAS catalog, two 
         SAS programs, and a readme file,

   2) a file (Peszek.scl) containing the code from the Appendix, 
         igraph.scl,

   3) a .pdf file of the entire article, and
  
   4) this read1st.txt file.