@TechReport{economics.dp.2009-6,
 author = {Challet, Damien, Solomon, Sorin, and Yaari, Gur},
 title = {The Universal Shape of Economic Recession and Recovery after a Shock},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2009},
 number = {2009-6},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2009-6}
}