1. Baltensperger, E., & Kugler, P. (2017). Swiss monetary history since the early 19th century. Cambridge: Cambridge University Press.
2. Cueni, D., & Sheldon, G. (2013). Bestimmungsfaktoren der Entwicklung der Arbeitslosigkeit in der Schweiz im Zeitraum 1990-2009. Study commissioned by the the state secretariat for economic affairs. Mimeo: University of Basel.
3. Heckman, J., & Borjas, G. (1980). Does unemployment cause future unemployment? Definitions, questions, and answers from a continuous time model of heterogeneity and state dependence. Economica, 47, 247–283.
4. Kemeny, J., & Snell, L. (1960). Finite Markov chains. D. Van Nostrand: Princeton.
5. Lewin, R. (1983). Niveau und Struktur der Arbeitslosigkeit in der Schweiz. Geld, Währung und Konjunktur, 1. Swiss National Bank, pp. 59-80.