000 00646nam a22002297a 4500
005 20210325200409.0
008 s2002 eng d
020 _a026260065X
041 _aeng
050 _aT211 J34P 2002
100 0 _aTrajtenberg, Manuel
245 1 0 _aPatents, citations, and innovations : a window on the knowledge economy
260 3 _aMassachusetts :
_bThe MIT Press,
_c2002
300 _a478 p. :
_bgraph, tables ;
_c22 cm.
650 0 4 _aTechnological innovations
650 0 4 _aInventions
650 0 4 _aPatents
700 0 _aTrajtenberg, Manuel
850 _aNALT
942 _cGB
997 _c000000000049916
999 _c49916
_d49916