\catcode `\@=11\relax 
\ZZ {Introduction}{1}{1}{1}
\ZZ {The method and its data structures}{1}{4}{3}
\ZZ {Diagnostic routines}{1}{9}{5}
\ZZ {Graph preparation}{1}{18}{9}
\ZZ {Reduction}{1}{19}{10}
\ZZ {The main algorithm}{1}{25}{13}
\ZZ {Construction}{1}{31}{16}
\ZZ {Deconstruction}{1}{39}{21}
\ZZ {Pulsing the action list}{1}{47}{26}
\ZZ {Index}{1}{51}{28}

\catcode `\@=12\relax