论文被发表在核心期刊《现代商业》2011年3月第9期上。的翻译：Papers were published in journals on March 2011 issue of the modern business. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Papers were published in core journals "modern business" in March 2011 on the first nine.

Papers were published in journals on March 2011 issue of the modern business.

The paper is published in the core periodical "Modern Trade" in March, 2011 on the 9th issue.

papers have been published in the modern business of core periodicals March 2011 on Phase 9.

Papers were published in journals on March 2011 issue of the modern business.