See Boll, C.; Leppin, J.; Rossen, A.; Wolf, A. (2016), "Magnitude and Impact Factors of the Gender Pay Gap in EU Countries, Report prepared for and financed by the European Commission - Directorate-General for Justice and Consumers.
Vt Boll, C., Leppin, J., Rossen, A., Wolf, A., „Magnitude and Impact Factors of the Gender Pay Gap in EU Countries", Euroopa Komisjoni õigus- ja tarbijaküsimuste peadirektoraadi tellitud ja rahastatud aruanne, 2016.