8Becker GS & Tomes N, "Human capital and the rise and fall of families".Journal of Labor Economics. 1986 (4) : 1-39.
9Steve Rytina, "Scaling the Intergenerational Continuity of Occupation: Is Occupational Inheritance A scriptive After All? ", American Journal of Sociology 1992,6 (57) : 1658-1688.
10James McIntosh & Martin D. Munk, " Social class, family background, and intergenerational mobility ", European Economic Review, 2007.