@Book{Stevens:1999:UU,
  author =       "Perdita Stevens and Rob Pooley",
  title =        "Using {UML}: software engineering with objects and
                  components",
  publisher =    "Addison-Wesley",
  year =         "1999",
  series =       "Object Technology Series",
  note =         "Updated edition for UML1.3: first published 1998 (as Pooley and Stevens)",
  isbn =         "0201648601",
}