1. Les ar�mes dans les glaces et crèmes glacées
2. AOAC official method 990.25: Vanillin, Vanillic Acid, p-Hydroxybenzaldehyde, and p-Hydroxybenzoic Acid and Ethyl Vanillin in Vanilla Extract and Artificial Vanilla Flavor: Liquid Chromatographic Method, in: AOAC Official Methods of Analysis.