Locht, C., & Delcour, J. (1985). Invitro Methylation of Undermethylated Yeast Poly(a)-rich Rna Using Messenger-rna (guanine-7-)-methyltransferase Purified From Wheat-germ Or Yeast. European Journal of Biochemistry, 152(2), 247-251. https://doi.org/10.1111/j.1432-1033.1985.tb09190.x (Original work published 1985)