Brown, Stephen P.A. (Stephen Paul Adolph), 1948- and Virmani, Raghav. "Bridging the Texas GDP Gap," in Federal Reserve Bank of Dallas. "May/June 2007, Issue 3," The Southwest Economy (May 2007) : 11-13. https://fraser.stlouisfed.org/title/6378/item/608958/toc/609494 , accessed on April 19, 2024.