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1         https://www.start.io/blog/nike-target-market-analysis/

2         https://www.adidas-group.com/en/about/history/

3         http://www.brandba.se/blog/2016/8/11/blogs-bloggers-blogging-the-role-and-the-power-of-blogs

4         https://ivypanda.com/essays/adidas-vs-nike/

5         https://www.webfx.com/digital-marketing/learn/digital-marketing-strategies/

6         https://bmmagazine.co.uk/business/role-of-social-media-in-digital-marketing/

7         https://www.cmswire.com/digital-marketing/where-do-marketers-draw-the-line-between-efficiency-and-effectiveness/

8         https://medium.com/@timbandito/nike-vs-adidas-which-is-the-better-investment-a88ba4242b26

9         https://www.academia.edu/4493713/Comparison_of_strategy_between_Nike_and_Adidas

10     https://www.bcg.com/publications/2013/media-entertainment-efficiency-effectiveness-digital-advertising

11     https://www.brightedge.com/glossary/why-you-should-be-blogging

12     https://goodonyou.eco/nike-vs-adidas-whos-more-ethical/

13     https://pestleanalysis.com/swot-analysis-of-adidas/

14     https://www.statista.com/topics/1257/adidas/