On the Optimality of the Patent Renewal System
2011 ◽
Vol 2011
(5)
◽
pp. 759-765
Keyword(s):
1964 ◽
Vol 26
(3)
◽
pp. 265-274
◽
Keyword(s):
Keyword(s):
1919 ◽
Vol 11
(10)
◽
pp. 937-937
Keyword(s):