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
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