<http://zbw.eu/stw/descriptor/10210-4>	Option pricing theory
<http://zbw.eu/stw/descriptor/15225-1>	Stochastic process
<http://zbw.eu/stw/descriptor/15315-0>	Nonparametric statistics
<http://zbw.eu/stw/descriptor/15272-6>	Estimation theory
<http://zbw.eu/stw/descriptor/19073-6>	Theory
