- Supreme Court of Colorado | Monday, May 3, 1971 | Cited 0 times
- North Dakota Supreme Court | Thursday, May 12, 1977 | Cited 0 times
- Colorado Court of Appeals | Thursday, March 16, 1989 | Cited 0 times
- Colorado Court of Appeals | Thursday, June 2, 1994 | Cited 0 times
- Colorado Court of Appeals | Thursday, June 20, 2019 | Cited 0 times