garnish references
- Fragment_039_01
- GANG, I. N., RIVERA-BATIZ, F. L. 1994. Labor Market Effects of Immigration in the United States and Europe: Substitution vs. Complementarity. Journal of Population Economics. European Society for Population Economics. Volume 7 (2): 157-175.
- WINKELMANN, R., ZIMMERMANN, K. F. 1994. Count data models for demographic data. Mathematical Population Studies. Volume 4. Edition 3: 205-221.
tbc.
-- Mendelbrno (Diskussion) 17:01, 16. Nov. 2021 (UTC)