- Court of Appeals of Minnesota | Tuesday, March 3, 1987 | Cited 0 times
- Court of Appeals of Minnesota | Tuesday, September 15, 1987 | Cited 0 times
- Supreme Court of Iowa | Wednesday, February 21, 1979 | Cited 0 times
- Court of Appeals of Wisconsin | Thursday, August 6, 1981 | Cited 0 times
- Supreme Court of Iowa | Tuesday, June 10, 1969 | Cited 0 times