TRANSOPOT 2019 Conference – Sopot – 27th to 29th May 20192 May 2019The challenges of transport development in the 21st century https://www.bssc.pl/wp-content/uploads/2019/05/TRANSOPOT_2019.jpg 227 264 Marek Grzybowski https://www.bssc.pl/wp-content/uploads/2018/12/logo-bssc.png Marek Grzybowski2019-05-02 13:42:052019-05-10 19:23:19TRANSOPOT 2019 Conference – Sopot – 27th to 29th May 2019