Bibliografía

• http://hacktegus.com/univ
• http://www.sybase.com/products/powerdesigner
• http://osiris.sunderland.ac.uk/sst/case2
• http://ceds.nauta.es/Catal/Products/caselist2.htm
• http://www3.uji.es/~mmarques/f47/apun/node75.html