Eller, S., Collot, M., Yin, J., Hahm, H. S., & Seeberger, P. H. (2013). Automated Solid-Phase Synthesis of Chondroitin Sulfate Glycosaminoglycans. Angewandte Chemie-International Edition, 52(22), 5858-5861. doi:10.1002/anie.201210132.