[交流] 【请教】为什么参考文献找不到

Originally posted by lzusxl at 2011-01-12 18:23:55:

我回复你吧！

德国拜尔公司申请的全球专利
Patent Number(s):
...; DE19907704-A; ...; DE19907704-A1;

Title:
Nano-scale precipitating zinc oxide used e.g. for protecting UV-sensitive organic  ...

Originally posted by 纳米小木球 at 2011-01-12 18:03:24:
我有一篇文献，具体步骤让我看参考文献16，可是在网上我怎么找不到这篇参考文献！大家有没有遇到这样的情况啊？

Originally posted by 纳米小木球 at 2011-01-12 18:04:51:

[16] H. Womelsdorf, W. Hoheisel, G. Passing, DE-A 199 07704 A 1, 2000.