KRATA, Przemysław. Implementation of gravity model to estimation of transportation market shares. Archives of Transport, Warsaw, Poland, v. 22, n. 1, p. 83–96, 2010. DOI: 10.2478/v10174-010-0005-2. Disponível em: https://archivesoftransport.com/index.php/aot/article/view/61.. Acesso em: 22 jul. 2024.