@inbook{12451,
  author = {Leon Moonen and Alex Sellink},
  title = {Cobol Data Flow Analysis},
  year = {1997},
  journal = {Program Analysis for System Renovation},
  chapter = {11},
  pages = {not specified},
  month = {jan},
  publisher = {Centrum voor Wiskunde en Informatica (CWI)},
  editor = {Arie van Deursen and P. Klint and G. Wijers},
}