72×54 Spectra Energy (SE) and Spectra Energy Partners (SEP), in SE and SEP stock price for one year, by John S. Quarterman, for SpectraBusters.org, 16 January 2015,
https://www.google.com/finance?q=NYSE%3ASE%2CNYSE%3Asep&ei=ORS7VImPCKe8sQfz2ICoCQ
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