1. Beck K Beedle M van Bennekum A Cockburn A Cunningham W Fowler M Grenning J Highsmith J Hunt A Jeffries R Kern J Marick B Martin RC Mellor S Schwaber K Sutherland J Thomas D http://agilemanifesto.org/ 2010
2. Carbon R Lindvall M Muthig D Costa P Integrating product line engineering and agile methods: Flexible design up-front vs. incremental design
3. Tian K Cooper K Agile and software product line methods: Are they so different