Papell, D., Prodan, R. The Uncertain Root in U. S. Real GDP: Evidence with Resticted and Unrestricted Structural Change. Columbia: 2004 с. 423-427,.
Papell, D., Prodan, R. The Uncertain Root in U. S. Real GDP: Evidence with Resticted and Unrestricted Structural Change. Columbia: 2004 с. 423-427,.
Papell, D., Prodan, R. (2004) The Uncertain Root in U. S. Real GDP: Evidence with Resticted and Unrestricted Structural Change, Columbia: с. 423-427,.
Papell, D., & Prodan, R. (2004). The Uncertain Root in U. S. Real GDP: Evidence with Resticted and Unrestricted Structural Change. Columbia: с. 423-427.
Papell D, Prodan R. The Uncertain Root in U. S. Real GDP: Evidence with Resticted and Unrestricted Structural Change. Columbia: 2004. p. с. 423-427.