Sustainability of rural areas in practice : conference proceedings from international scientific conference, Slovak University of Agriculture in Nitra, Slovakia, 3-4 december 2015 / [editors Ladislav Mura, Monika Bumbalová, Monika Gubáňová] . Nitra :  Slovak University of Agriculture , 2016 . 567 s . ISBN 978-80-552-1575-4 . [3, of that borrowed 0]