TY - JOUR T1 - Aromaticity of caffeine, xanthine and the dimethyl xanthines JO - Tetrahedron Letters PY - 2014/01/01 AU - Gibson CM AU - Fowler PW ED - DO - DOI: 10.1016/j.tetlet.2014.02.027 Y2 - 2024/12/22 ER -