一些作者来信讲 :国内一些单位利用他们在本刊发表的论文被国外权威刊物摘登的信息 ,向他们收取费用。为节省本刊作者开支 ,现将国外权威刊物 CA(即美国化学文摘 )最近选登本刊论文的情况 ,公布于下表。此信息 ,可在当地大型图书馆查到 ;有困难的 ,可与本刊编辑部联系。《光谱 Some writers say: Some units in China use their information published in this magazine to be picked up by foreign authoritative publications and charge them a fee. In order to save on the expenditure of our authors, the recent publication of selected papers by foreign authoritative publications CA (American Chemical Abstracts) is published in the following table. This information can be found in the local large library; have difficulties, with the editorial department. "spectrum