%0 Journal Article %T Comment on “Characteristics and trends in various forms of the Palmer Drought Severity Index (PDSI) during 1900–2008” by Aiguo Dai %A Vicente-Serrano, Sergio M. %A Beguería, Santiago %A López-Moreno, Juan I. %A , %J Journal of Geophysical Research %@ 0148-0227 %D 2011-10-12 %I American Geophysical Union (AGU) %~ DeepDyve