David Fushman, Ranjani Varadan, Michael Assfalg, Olivier Walker, Determining domain orientation in macromolecules by using spin-relaxation and residual dipolar coupling measurements, Progress in Nuclear Magnetic Resonance Spectroscopy, Volume 44, Issues 3–4, 2004, Pages 189-214, ISSN 0079-6565, https://doi.org/10.1016/j.pnmrs.2004.02.001. (http://www.sciencedirect.com/science/article/pii/S0079656504000032) Keywords: Domain orientation; Residual dipolar couplings; Rotational diffusion; Interdomain dynamics; Spin relaxation; Spin labeling; Ubiquitin; Polyubiquitin