Ivanova-Petropulos, V., Tašev, K. and Stefova, M. 2016. HPLC method validation and application for organic acid analysis in wine after solid-phase extraction. Macedonian Journal of Chemistry and Chemical Engineering. 35, 2 (Dec. 2016), 225–233. DOI:https://doi.org/10.20450/mjcce.2016.1073.