@TECHREPORT {NKAMLEU:2006h, title = {On measuring indebtedness of African countries: a stochastic frontier debt production function}, author = {Nkamleu, G. B. }, year = {2006}, month = {June}, number = {85}, institution = {African Development Bank}, address = {Tunis Belvedere, Tunisia}, note = {Economic Research Working Paper Series}, url = {http://www.afdb.org}, }