Krejčiřík, David
Lotoreichik, Vladimir
Funding for this research was provided by:
Grantová Agentura České Republiky (17-01706S)
Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa (PTDC/MAT-CAL/4334/2014)
Article History
Received: 12 July 2017
Accepted: 21 November 2018
First Online: 9 January 2019