@unpublished{publication-11969, author={Nyborg, Kjell G and Keloharju, Matti and Malkam{\"a}ki, Markku and Rydqvist, Kristian}, institution={University of Zurich}, number=16, series={Bank of Finland Research Discussion}, title={A Descriptive Analysis of the Finnish Treasury Bond Market 1991-1999}, year=2002, }