bois (1) arbre (1) temps (durée) (1) espèce (1) science (1) représentation (1) papier (1) chêne (1) information (1) forêt (1) extraction (1) chimie (1) substance chimique (1) Chemical warfare (1) Metadata (1) Wood (1) Time (1) Terpenes (1) Species (1) Scientific literature (1) Science (1) Representative government and representation (1) Process (Law) (1) Phenols (1) Paper (1) Oak (1) History (1) Extracts (1) European beech (1) English oak (1)