Fed:10.3905/JOD.2009.17.2.007
Fed:10.3905/jpm.1984.21
Fed:10.3905/jpm.1985.409027
Fed:10.3905/jpm.1999.319756
Fed:10.3905/jpm.2000.319722
Fed:10.3905/jpm.2002.319851
Fed:10.3905/jpm.2003.319873
Fed:10.3905/jpm.2005.570152