@article{201806.0097,
	doi = {10.20944/preprints201806.0097.v1},
	url = {https://doi.org/10.20944/preprints201806.0097.v1},
	year = 2018,
	month = {June},
	publisher = {Preprints},
	author = {Jing Yu and Liang Li and han zhang},
	title = {Study of Low Frequency Phonon Modes in YBCO System},
	journal = {Preprints}
}