This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle by 1, 2,*, 2 and 3 1 Zoraja Consulting, Spinčićeva 2E, 21000 Split, Croatia 2 Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Ruđera Boškovića 32, 21000 Split, Croatia 3 Department of Mathematics and Computer Science, Emory University, 400 Dowman Dr., Atlanta, GA 30322, USA * Author to whom correspondence should be addressed.