4SOETE L.International diffusion of technology,industrial development and technological leapfrogging [J].World Development, 1985 ( 13 ) : 409-522.
5PEREZ C ,SOETE L.Catching-up in technology: entry,barriers and windows of opportunity [A]Dosi.Technical Change and Economic Theory[M].Pinter Publishers,London, 1988.
6BREZIS,KRUGMAN ,TSIDDON.Leap-fogging in international competition: a theory of cycles in national technological leadership [J].American Economic Review, 1993,83:1211-1219.