E3S Web of Conferences

GDP forecast of accommodation and catering industry in X city based on multi variable grey model —— Energy saving development of accommodation and catering industry

Qian Gao, Yunyun Liu, Junyi Yang, Yu Hong and Lei Wen

E3S Web Conf., 275 (2021) 02040

Published online: 21 June 2021

DOI: 10.1051/e3sconf/202127502040

Qian Gao

Yunyun Liu

Junyi Yang

Yu Hong

Lei Wen

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