State, trends and perspectives for the development of extreme tourism in Bulgaria (presenting the case of the off-road "Bulgaria Trophy Challenge 2017)
Zheleva, V. State, trends and perspectives for the development of extreme tourism in Bulgaria (presenting the case of the off-road "Bulgaria Trophy Challenge 2017). 2017 pp. 446 - 451,.
Zheleva, V. State, trends and perspectives for the development of extreme tourism in Bulgaria (presenting the case of the off-road "Bulgaria Trophy Challenge 2017). 2017 pp. 446 - 451,.
Zheleva, V. (2017) State, trends and perspectives for the development of extreme tourism in Bulgaria (presenting the case of the off-road "Bulgaria Trophy Challenge 2017), pp. 446 - 451,.
Zheleva, V. (2017). State, trends and perspectives for the development of extreme tourism in Bulgaria (presenting the case of the off-road "Bulgaria Trophy Challenge 2017). pp. 446 - 451.
Zheleva V. State, trends and perspectives for the development of extreme tourism in Bulgaria (presenting the case of the off-road "Bulgaria Trophy Challenge 2017). 2017. p. pp. 446 - 451.
