On the Development of a Substitute for an Exhaustible Natural Resource
1982 ◽
pp. 47-63
◽
1997 ◽
Vol 32
(2)
◽
pp. 154-169
◽
1988 ◽
Vol 15
(3)
◽
pp. 341-354
◽
1995 ◽
Vol 18
(3)
◽
pp. 617-620
◽