Ivanova-Petropulos, V., Wiltsche, H., Stafilov, T., Stefova, M., Motter, H. and Lankmayr, E. (2013) “Multi-element analysis of Macedonian wines by inductively coupled plasma–mass spectrometry (ICP–MS) and inductively coupled plasma–optical emission spectrometry (IP–OES) for regional classification”, Macedonian Journal of Chemistry and Chemical Engineering, 32(2), pp. 265–281. doi: 10.20450/mjcce.2013.447.