1. Nucleic acids are not boring long polymers of only four types of nucleotides: A guided tour;Grosjean,2009
2. The RNA Modification Databasehttp://mods.rna.albany.edu/home
3. Biosynthesis of the 7-deazaguanosine hypermodified nucleosides of transfer RNA
4. Decoding the genome: a modified view
5. Studies on polynucleotides. XCI. Yeast methionine transfer ribonucleic acid: Purification, properties, and terminal nucleotide sequences;RajBhandary;J. Biol. Chem.,1969