Riordan M. & Hoddeson L. "The origins of the pn junction"(PDF). IEEE Spectrum, June 1997, pp. 46-51. Archived from the original(PDF) on June 27, 2012. Retrieved October 6, 2010.
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Riordan M. & Hoddeson L. "The origins of the pn junction"(PDF). IEEE Spectrum, June 1997, pp. 46-51. Archived from the original(PDF) on June 27, 2012. Retrieved October 6, 2010.