Journal Article
                        
                        Van Oel, Pieter R, Dawit W Mulatu, Vincent O Odongo, Frank M Meins, Rick J Hogeboom, Robert  Becht, Alfred  Stein, Japheth O Onyando, and Anne  Veen.  
"The effects of groundwater and surface water use on total water availability and implications for water management: the case of Lake Naivasha, Kenya." Water resources management 27, no. 9 (2013): 3477-3492.