1. West African Sahel has become wetter during the last 30 years, but dry spells are shorter and more frequent;Bichet;Clim. Res.,2018
2. Extreme dry and wet spells face changes in their duration and timing;Breinl;Environ. Res. Lett.,2020
3. Analysis of the Characteristics of Dry and Wet Spells in a Mediterranean Region;Caloiero;Environ Process.,2020
4. Caspary, H. J., 2012). Die Entwicklung von trockenen Großwetterlagen mit Auswirkungen auf den süddeutschen Raum. Arbeitskreis KLIWA. Landsamt für Umwelt, Wasserwirtschaft Rheinland-Pfalz. 142 p., online resource available at urn:nbn:de:hbz:929:02-edoweb:70012114.
5. Forecasting and stock control for intermittent demands;Croston;Operat. Res. Q.,1972