A team at the University of Rochester recently published a possible answer to that question on-line in the journal Nature.

Rochester大学的一个研究组最近在自然杂志的网络版上发表了一篇文章，可能揭示了这个问题的答案。

youdao

For instance, a representation of the sources cited in the journal Nature gives each source publication a line and identifies different scientific fields in different colours.

比如，引用来源于日报Nature的表现给每个来源发布一个支座，确定不同的科学领域以不同的颜色。

youdao

There is the so-called big deal, where institutional subscribers pay for access to a collection of on line journal titles through site-licensing agreements.

现在出现一种所谓的大杂烩，研究单位订阅者通过网站许可协议，购买网上期刊合集的使用权。

youdao

When asked if the newspaper would consider adding bloggers to the on-line journal, the entire management team was horrified.

FORBES: Changes in Journalism - Get Aboard, or Get Run Over!!

Swartz was portrayed by prosecutors as a computer hacker who had wrongfully accessed some free documents from an on-line academic journal repository at the Massachusetts Institute of Technology (MIT).

FORBES: Aaron Swartz Hacker Case Ends With Suicide

Among U.S. newspapers, The Wall Street Journal is first to the finish line.

FORBES: WSJ Starts Its Own Wikileaks Alternative: SafeHouse