WIPO patent information services for developing countries
2001 ◽
Vol 23
(3)
◽
pp. 295-308
◽
1995 ◽
Vol 17
(2)
◽
pp. 124-129
◽
1979 ◽
Vol 1
(5)
◽
pp. 285-289
◽
1992 ◽
Vol 14
(3)
◽
pp. 211
◽
2001 ◽
Vol 23
(3)
◽
pp. 287-293
◽
1978 ◽
Vol 10
(1)
◽
pp. 23-27
◽