| 杂志名称: Harvard Business Review Article文献名称: Ad Spending: Maintaining Market Share作者: by John Philip Jones 出版日期: 6 pages. Publication date: Jan 01, 1990. Prod. #: 90108-PDF-ENG |
连接:http://hbr.org/product/ad-spendi ... re/an/90108-PDF-ENG
另外,这个连接也可以:http://www.ncbi.nlm.nih.gov/pubmed/10106403
谢谢!!!


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