Debao DaiHuixian MaMin ZhaoTijun Fan2025-05-222025-05-222023jz000180-0557https://tustorage.ulb.tu-darmstadt.de/handle/tustorage/39596600Group Buying Pricing Strategies of O2O Restaurants in Meituan Considering Service LevelsArticlehttps://doi.org/10.3390/systems11120562