Liu, Y., Zhu. Y., Ren, L., Singh, V. P., Yong, B., Jiang, S., Yuan, F. and Yang, X.
(2019). "Understanding the spatiotemporal links between meteorological and hydrological
droughts from a three‐dimensional perspective." Journal of Geophysical Research: Atmospheres,
Vol. 124, No. 6, pp. 3090-3109.