For citations:

Bochkin G.A., Fel'dman E.B., Lazarev I.D., Vasil'ev S.G. Contributions of different parts of dipole-dipole interactions to relaxation of multiple quantum NMR coherences in a single crystal of calcium fluorapatite. Magnetic Resonance in Solids. 2019;21(1):19107 (10 pp.). https://doi.org/10.26907/mrsej-19107