@mastersthesis{publication-18159, author={Grabchev, Nikolay Grigorov}, editor={Farkas, W}, faculty={Faculty of Business, Economics and Informatics}, institution={University of Zurich}, pages=89, title={IFRS 9 Point-in-Time Probability of Default Modelling with Focus on Mortgages and Signifi cant Increase in Credit Risk}, year=2019, }