http://www.tradersmagazine.com/news/out-of-order-are-controls-needed-on-choice-complexity-competition-110714-1.html

http://www.tradersmagazine.com/news/bats-systems-errors-affected-pricing-for-years-110711-1.html

https://theoptionsinsider.com/industry/?p=100006680&qcABC=1

http://www.reuters.com/article/2013/01/09/us-nasdaq-euronext-idUSBRE90810820130109

http://dealbook.nytimes.com/2013/01/09/loeb-counters-ackmans-bet-against-herbalife/

http://www.etftrends.com/2013/01/new-lows-for-volatility-etfs-as-vix-drops-to-2007-levels/

http://online.barrons.com/article/SB50001424052748703596604578231532384028980.html?mod=BOL_hpp_highlight_bottom

http://www.businessinsider.com/a-washington-post-article-on-the-debt-ceiling-is-being-blamed-for-the-collapse-in-market-volatility-2013-1

http://www.bloomberg.com/news/2013-01-09/vix-ends-six-day-drop-rebounding-from-lowest-since-07.html

http://www.minyanville.com/trading-and-investing/options/articles/Taking-Advantage-of-Recent-Lows-in/1/9/2013/id/47261

http://online.barrons.com/article/SB50001424052748703596604578227524248495176.html?mod=BOL_options_home

http://www.theglobeandmail.com/globe-investor/inside-the-market/as-vix-slumbers-investors-grow-complacent/article7032146/