Lennon RP, Demetriou TJ, Khalid MF, Van Scoy LJ, Miller EL, Dong H, Zgierska AE. Characteristics and outcomes among hospitalized COVID-19-positive patients in a nonurban environment. Mil Med. 2021 Nov 2;186(11-12):1088-92. doi: 10.1093/milmed/usab044
Bregantini D. Moment-based estimation of stochastic volatility. J Bank Financ. 2013 Dec 1;37(12):4755-64. doi: 10.1016/j.jbankfin.2013.08.008