http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1. Cartesian products -- 2. Classic topics -- 3. Graphical invariants -- 4. Metric aspects -- 5. Algebraic and algorithmic issues.
Wilfried Imrich, Sandi Klavzar, Douglas F. Rall.
Includes bibliographical references (pages 191-198) and indexes.