T. Govindaraju and V. A. Kumar,
Backbone extended pyrrolidine peptide nucleic acids (bepPNA): Synthesis, characterization and DNA/RNA binding studies,
495 - 497 (2005).
T. Govindaraju, V. A. Kumar and K. N. Ganesh,
Cyclohexanyl and Cyclopentanyl PNAs: Conformationally preorganized PNAs with steric filters for selective binding of RNA,
J. Am. Chem. Soc127, 4144 - 4145 (2005).