@book{Schemmel1998,
author = {Schemmel, Jan Peter},
year = {1998},
language = {eng},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {National environmental action plans in Africa},
url = "http://dx.doi.org/10.17169/refubium-23428",
}