Traneva, Velichka http://orcid.org/0000-0002-8929-4126
Tranev, Stoyan
Stoenchev, Miroslav
Atanassov, Krassimir
Article History
First Online: 18 June 2018
Compliance with ethical standards
:
: This study was funded by the Bulgarian National Science Fund under Grants Ref. No. DN-02-10 “New Instruments for Knowledge Discovery from Data, and their Modelling” and the project of Asen Zlatarov University under Ref. No. NIX-401/2017 “Modern methods of optimization and business management”.
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.