Å táfek, P., P. Šánová, Z. Novotná, and A. Laputková. “Effectiveness of Retraining As an Instrument for Solving the Problem of Structural Unemployment in the Czech Republic”. International Journal of Economics and Financial Issues, vol. 6, no. 3, July 2016, pp. 926-32, https://www.econjournals.com/index.php/ijefi/article/view/2341.