@proceedings{sgem201962, title = {19th International Multidisciplinary Scientific GeoConference SGEM 2019, Nano, Bio, Green and Space Technologies for a Sustainable Future, Vol. 19, Issue 6.2}, author = {International authors}, year = {2019}, publisher = {STEF92 Technology}, isbn = {}, doi = {10.5593/sgem2019/6.2} }