1. Comparing the efficacy and safety of high-concentrate (5–7.5:1) ivy leaves extract and Acetylcysteine for treatment of children with acute bronchitis;Bolbot;Drugs of Ukraine,2004
2. Extent of Population Exposure to Assess Clinical Safety – CPMP/ICH/375/95 (ICH E1A);CPMP,1995
3. Efeu ist die Arzneipflanze des Jahres 2010;Czygan;Zeitschrift für Phytotherapie,2010
4. EMA/HMPC/289432/2009. Hedera Helix folium draft.
5. ESCOP Monograph Ivy Leaf,2003