- Supreme Court of Iowa | Wednesday, October 17, 1990 | Cited 0 times
- Supreme Court of Iowa | Wednesday, March 19, 1975 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Tuesday, December 3, 1991 | Cited 0 times
- District Court of Appeal of Florida | Wednesday, January 25, 1978 | Cited 0 times
- Supreme Court of Iowa | Wednesday, March 24, 1999 | Cited 0 times
- Court of Appeals of Arizona | Thursday, November 7, 1968 | Cited 0 times
- Supreme Court of Iowa | Wednesday, September 2, 1970 | Cited 0 times