APPLICATION OF GEOGRAPHIC INFORMATION SYSTEMS AND GLOBAL POSITIONING SYSTEMS IN HUMANITARIAN EMERGENCIES, The: LESSONS LEARNED, PROGRAMME IMPLICATIONS AND FUTURE RESEARCH / KAISER, Reinhard ; SPIEGEL, Paul ; HENDERSON, Alden ; GERBER, Michael .- Oxford: Blackwell ; Overseas Development Institute , 2003 .- 1vol; 13pp; 25cms .- ISSN 0361-3666.-