By Glass J.C.   McKillop D.G.   O'Rourke G.   in Journal of Productivity Analysis

ISSN:0895-562X|10|2|153-175

Springer Publishing Company ‎(1998)‎

Access to resources Favorite 9.6549225

By Glass J. C.   McKillop D. G.   O'Rourke G.   in Applied Economics

ISSN:1466-4283|34|9|1097-1108

Routledge Ltd‎(2002)‎

Access to resources Favorite 3.5027366