Elsevier文献求助

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1. A generalized model for forecasting technological substitution

http://www.sciencedirect.com/science/article/pii/0040162576900275

2. A rationale for law of technological substitution

http://www.sciencedirect.com/science/article/pii/0166046285900377

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关键词：elsevier文献 elsevier else vier 文献求助

楼主，请教一下，technological substitution怎讲？是指什么问题？多谢赐教

newren09 发表于 2011-11-1 16:15
楼主，请教一下，technological substitution怎讲？是指什么问题？多谢赐教

The old technologies is substituted by some new technologies, such as communication technology 3G substitute 2G.

iscenduan 发表于 2011-11-1 16:56
The old technologies is substituted by some new technologies, such as communication technology 3G  ...

Great!I'm interested in this topic.
Thank you for your explanation!
I'm trying to download the paper for you in my university,but it's doesn't work.So sorry……

newren09 发表于 2011-11-1 20:40
Great!I'm interested in this topic.
Thank you for your explanation!
I'm trying to dow ...

It doesn't matter, anyway, tks a lot!