30th International Business Information Management Association Conference - Vision 2020: Sustainable Economic development, Innovation Management, and Global Growth, IBIMA 2017. International Business Information Management Association, IBIMA.

Technical University of Wroclaw.

19th International and 14th European-African Regional Conference of the International Society for Terrain-Vehicle, ISTVS 2017. International Society for Terrain-Vehicle Systems.

Бял Град-БГ ООД.

Bentham Science Publishers B.V..

Medknow Publications.

Beilstein-Institut Zur Forderung der Chemischen Wissenschaften.

American Mathematical Society.

[б.и.].