Zimmermann, Herbert Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
http://www.sciencedirect.com/science/article/pii/S0009261400009350/pdf?md5=6a1230f66f9485e7ad905994038b9b8e&pid=1-s2.0-S0009261400009350-main.pdf (Any fulltext)
http://dx.doi.org/10.1016/S0009-2614(00)00935-0 (Any fulltext)
Qi, F., Hinze, G., Böhmer, R., Sillescu, H., & Zimmermann, H. (2000). Slow and fast methyl group rotations in fragile glass-formers studied by NMR. Chemical Physics Letters, 328(3), 257-262. doi:10.1016/S0009-2614(00)00935-0.