1. Entrepreneurship through social networks;Aldrich,1986
2. Complex urban systems and extreme events;Alesch,2005
3. Organization at risk: What happens when small businesses and not-for-profits encounter natural disasters;Alesch,2001
4. Family and firm culture;Astrachan,2002
5. Basile, E., & Cecchi, C. (2005). Building social capital in rural areas: Does public action help? University of Rome, Economics Department. Retrieved on May, 15, 2010 from www.engagingcommunities2005.org.