An Introduction to the Economic Study of Knowledge
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1977 ◽
Vol 19
(4)
◽
pp. 427-433
2007 ◽
Vol 32
(3)
◽
pp. 1915-1925
2019 ◽
Vol 10
(1)
◽
pp. 17-25
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2014 ◽
Vol 5
(1)
◽
pp. 13-24
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