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Transport Problems > 2017 > T. 12, z. 1 > 111--123
LogForum > 2014 > Vol. 10, no. 1 > 31--41
Computers and Mathematics with Applications > 2008 > 56 > 5 > 1303-1313
Transport Problems > 2017 > T. 12, z. 1 > 111--123
LogForum > 2014 > Vol. 10, no. 1 > 31--41
Computers and Mathematics with Applications > 2008 > 56 > 5 > 1303-1313