Asymmetric volatility in equity markets around the world, 作者, one B.Horpestad,ŠtefanLyócsa,PeterMolnár ,Torbjørn B.Olsen,Volume 48, April 2019, Pages 540-554,Jone B.HorpestadaŠtefanLyócsabcPeterMolnáradTorbjørn B.Olsena,MichałDzielińskiaMarc OliverRiegerbTõnnTalpseppc Journal of Empirical FinanceVolume 45, January 2018, Pages 59-67
https://doi.org/10.1016/j.jempfin.2017.09.010