PRESENTATION OF THE RAIL FREIGHT MARKET’S CONCENTRATION WITH RESPECT TO THE GAS MARKET WITH THE HELP OF THE HERFINDAL-HIRSCHMAN INDEX

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ژورنال

عنوان ژورنال: Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport

سال: 2016

ISSN: 2307-6666,2307-3489

DOI: 10.15802/stp2016/90474