Institution: | aFaculty of Natural Sciences and Mathematics, University of Maribor, Koroška 160, Maribor 2000, Slovenia;bInstitute of Mathematics, Physics and Mechanics, Jadranska 19, Ljubljana 1000, Slovenia;cFaculty of Civil Engineering, University of Maribor, Smetanova 17, Maribor 2000, Slovenia;dFaculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, Ljubljana 1000, Slovenia |