equal
  deleted
  inserted
  replaced
  
    
    
   114       Computer Science. Pages 217-232.  | 
   114       Computer Science. Pages 217-232.  | 
   115       © <A HREF="http://link.springer.de/link/service/series/0558/tocs/t7406.htm">Springer Verlag</A>  | 
   115       © <A HREF="http://link.springer.de/link/service/series/0558/tocs/t7406.htm">Springer Verlag</A>  | 
   116       [<A HREF="http://www.inf.kcl.ac.uk/staff/urbanc/Publications/itp-12.pdf">pdf</A>]<BR><BR>  | 
   116       [<A HREF="http://www.inf.kcl.ac.uk/staff/urbanc/Publications/itp-12.pdf">pdf</A>]<BR><BR>  | 
   117   | 
   117   | 
   118       (In the published version is a bogus sentence after the definition   | 
   118       (In the published version is a bogus sentence after the definition   | 
   119        of detached and also a typo in the definition of schs. Both is corrected  | 
   119        of detached and also a typo in the definition of schs. Both are corrected  | 
   120        in the version above.)  | 
   120        in the version above.)  | 
   121 </TD>  | 
   121 </TD>  | 
   122 </TR>  | 
   122 </TR>  | 
   123   | 
   123   | 
   124   | 
   124   |