Balog, M., Kálai, T., Jekö, J., Berente, Z., Steinhoff, H.-J., Engelhard, M., et al. (2003). Synthesis of new conformationally rigid paramagnetic small α-amino acids. Tetrahedron Letters, 44(51): 1, pp. 9213-9217. Retrieved from http://dx.doi.org/10.1016/j.tetlet.2003.10.020.