1. The Minneapolis Tornadoes, May 6, 1965: Notes on the Warning Process;OHIO STATE UNIVERSITY DISASTER RESEARCH CENTER RESEARCH REPORT,1965
2. BATES, F.C., SEVERE LOCAL STORM FORECASTS AND WARNINGS AND GENERAL PUBLIC, BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY 43: 288 (1962).
3. The tornadoes at Dallas, Texas, April 2, 1957;U.S. WEATHER BUREAU RESEARCH PAPER,1957
4. Brouillette, J., A Tornado Warning System: Its Functioning on Palm Sunday in Indiana: 9 (1966).
5. ESSA Technical Memorandum 1970 ERLTM-NSSL 49 Tornado Incidence Maps