By Battistelli A.   Yiheyis A.   Calore C.   Ferragina C.   Abatneh W.   in Geothermics

ISSN:0375-6505|31|3|381-406

Elsevier‎(2002)‎

Access to resources Favorite 6.999342

By Yiheyis Zelealem   in International Review of Applied Economics

ISSN:1465-3486|20|1|21-45

Routledge Ltd‎(2006)‎

Access to resources Favorite 3.0651405