State Corporation in Federal and Interstate Relations. The Northern Securities Cases." Columbia Law Review 3.3 (1903): 168–197. in JSTOR Stigler, George J. "Monopoly and oligopoly by merger." American Economic Review (1950): 23–34. in JSTOR Strouse, Jean. Morgan: American Financier (1999) pp 418–34. Primary sources The Northern Securities Decision Northern Securities Co. v. United States at Cornell Law School's Supreme Court Collection. Chicago, Burlington and Quincy Railroad subsidiaries Great Northern Railway (U.S.) subsidiaries Northern Pacific Railway subsidiaries Progressive Era in the United States