@Article{nhess-4-17-2004,
AUTHOR = {Gonz\'alez, J. and Vald\'es, J. B.},
TITLE = {The mean frequency of recurrence of in-time-multidimensional events for drought analyses},
JOURNAL = {Natural Hazards and Earth System Science},
VOLUME = {4},
YEAR = {2004},
NUMBER = {1},
PAGES = {17--28},
URL = {http://www.nat-hazards-earth-syst-sci.net/4/17/2004/},
DOI = {10.5194/nhess-4-17-2004}
}