S.T. Dziuba. "SYSTEMS PROVIDING FOOD SAFETY AND ITS PERCEPTION BY POLISH CUSTOMERS - INTRODUCTION." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2017 17th International Multidisciplinary Scientific GeoConference (2017): 835-842. https://doi.org/10.5593/sgem2017/53/s21.104