[1]
D. Seebach, A. K. Beck, M. Rueping, J. V. Schreiber, and H. Sellner, “Excursions of Synthetic Organic Chemists to the World of Oligomers and Polymers”, Chimia, vol. 55, no. 3, p. 98, Mar. 2001, doi: 10.2533/chimia.2001.98.