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The German equity market: risk, return, and liquidity.
Goeppl, Hermann, (2007)
The Karlsruher Kapitalmarktdatenbank (KKMDB): the IBIS data. Version October 1997.
Luedecke, Torsten, (2007)
Trading Credit Default Swaps Via Interdealer Brokers
Gündüz, Yalin, (2015)