Clas Wihlborg, Thomas D. Willett, Nan Zhang: The Euro Crisis: It Isn't Just Fiscal and it Doesn't Just Involve Greece, 8. September 2010, Claremont McKenna College Robert Day School of Economics and Finance Research Paper No. 2011-03, SSRN és doi:10.2139/ssrn.1776133
Clas Wihlborg, Thomas D. Willett, Nan Zhang: The Euro Crisis: It Isn't Just Fiscal and it Doesn't Just Involve Greece, 8. September 2010, Claremont McKenna College Robert Day School of Economics and Finance Research Paper No. 2011-03, SSRN és doi:10.2139/ssrn.1776133