http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Developmental Patterning of the Vertebrate Limb
Proceedings of a NATO ARW held in Santander, Spain, September 23-26, 1990
edited by J. Richard Hinchliffe, Juan M. Hurle, Dennis Summerbell.