Varvaresou, A. Tsirivas, E. Iakovou, K. Gikas, E. Papathomas, Z. Vonaparti, A. Panderi, I., Development and validation of a reversed-phase ion-pair liquid chromatography method for the determination of magnesium ascorbyl phosphate and melatonin in cosmetic creams, Analytica Chimica Acta, (573-574), 284-290, 2006, 0003-2670