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[55: Bettio, F., Verashchagina, A. i stručna skupina EU-a o rodnim pitanjima i zapošljavanju (2009.), „Fiskalni sustav i zaposlenost žena u Europi" (Fiscal system and female employment in Europe). http://ec.europa.eu/social/BlobServlet?docId=5545&langId=en][56: Europska komisija (2015.), Osobe koje ostvaruju drugi prihod u kućanstvu i fiskalne politike u Europi (Secondary earners and fiscal policies in Europe). http://ec.europa.eu/justice/gender-equality/files/documents/150511_secondary_earners_en.pdf ]