APA (7th ed.) Citation

Fertig, M., & Schmidt, C. M. (2002). Mobility within Europe: What do we (still not) know? Discussion paper series.

Chicago Style (17th ed.) Citation

Fertig, Michael, and Christoph M. Schmidt. "Mobility Within Europe: What Do We (still Not) Know?" Discussion Paper Series 2002.

MLA (9th ed.) Citation

Fertig, Michael, and Christoph M. Schmidt. "Mobility Within Europe: What Do We (still Not) Know?" Discussion Paper Series, 2002.