Keythman, Bryan. "What Is a Characteristic of a Fixed Asset?" Chron.com, Hearst Newspapers, smallbusiness.chron.com/characteristic-fixed-asset-69126.html. Accessed 23 Aug. 2018.
Levy, Howard B. "Depreciable Asset Lives." The CPA Journal, The New York State Society of CPAs, Sept. 2016, www.cpajournal.com/2016/09/08/depreciable-asset-lives.
Skroupa, Christopher P. "How Intangible Assets Are Affecting Company Value in the Stock Market." Forbes, 1 Nov. 2017, www.forbes.com/sites/christopherskroupa/2017/11/01/how-intangible-assets-are-affecting-company-value-in-the-stock-market/#2365e0582b8e.