ŠULEKOVÁ, Monika - VEĽASOVÁ, Veronika. HPLC Analysis of Preservatives in Cough Syrup. In New trends in chemistry, research and education at Faculty of Science of P. J. Šafárik University in Košice 2018. New trends in chemistry, 9.11.2018, Košice : Trends in chemistry, research and education at Faculty of Science of P.J. Šafárik University in Košice : book of abstracts. 1. vyd. - Košice : UPJŠ, 2018. ISBN 978-80-8152-666-4, online, S. 21. Available on Internet: <https://unibook.upjs.sk/img/cms/2018/pf/new-trends-in-chemistry-2018-web.pdf>