Happyana, N., Agnolet, S., Muntendam, R., van Dam, A., Schneider, B., & Kayser, O. (2013). Analysis of cannabinoids in laser-microdissected trichomes of medicinal Cannabis sativa using LCMS and cryogenic NMR. Phytochemistry, 87, 51-59. doi:10.1016/j.phytochem.2012.11.001.