https://www.dunescientific.com/beta-angles/2014-12-10T14:18:21-08:00https://www.dunescientific.com/rotational-resonance-echo/2015-01-20T16:16:20-08:00https://www.dunescientific.com/two-spin-system/2014-12-10T14:18:49-08:00https://www.dunescientific.com/excitation-of-double-quantum-coherence/2014-12-10T14:20:30-08:00