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B. Ahrens
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MAKING WASTEWATER CONSTRUCTION PROJECTS SUSTAINABLE IN URBAN, RURAL, AND PERI-URBAN AREAS
J. Mihelcic, B. Ahrens, 2012 .
A Comparison of Wash Area and Soak Pit Construction: The Changing Nature of Urban, Rural, and Peri-Urban Linkages in Sikasso, Mali
B. Ahrens, 2005 .