DRUSKA, V., JEONG, B., KEJAK, M., VINOGRADOV, V. Assessing the problem of human capital mismatch in transition economies. Ann Arbor: The William Davidson Institute at the University of Michigan Business School, 2002. William Davidson Institute Working Paper Series, 467. Dostupné z: http://wdi.umich.edu/files/Publications/WorkingPapers/wp467.pdf