Schwartz, John (7 May 2012). "Freight Train Late? Blame Chicago". The New York Times. Archived from the original on 27 June 2017. Retrieved 28 February 2017. Chicago Rail Congestion Slows the Whole Country, New York Times, 8 May 2012
Schwartz, John (7 May 2012). "Freight Train Late? Blame Chicago". The New York Times. Archived from the original on 27 June 2017. Retrieved 28 February 2017. Chicago Rail Congestion Slows the Whole Country, New York Times, 8 May 2012