1. Allen R, Pereira L, Raes D, Smith M (1998) Crop evapotranspiration-guidelines for computing crop water requirements FAO irrigation and drainage paper 56. FAO, Rome 300(9):D05109
2. Arritt, R. (2008). Regional drought in the North American Regional Climate Change Assessment Program (NARCCAP). NOAA. Retrieved from https://www.cpc.ncep.noaa.gov/products/outreach/workshops/CDPW33/abstracts/rarritt.shtml
3. Aryal Y, Zhu J (2017) On bias correction in drought frequency analysis based on climate models. Clim Change 140(3–4):361–374
4. Aryal Y, Zhu J (2020) Multimodel ensemble projection of meteorological drought scenarios and connection with climate based on spectral analysis. Int J Climatol 40(7):3360–3379
5. Ashfaq M, Rastogi D, Mei R, Kao S-C, Gangrade S, Naz B, Touma D (2016) High-resolution ensemble projections of near-term regional climate over the continental United States. Journal of Geophysical Research: Atmospheres 121(17):9943–9963