Number | Name | Date | Kind |
---|---|---|---|
3920894 | Shirley et al. | Nov 1975 | |
4176247 | Englund | Nov 1979 | |
4202051 | Davida | May 1980 | |
4475208 | Ricketts | Oct 1984 | |
4531022 | Pioli | Jul 1985 | |
4555591 | Nash | Nov 1985 |
Entry |
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Commander and Vose, "How Safe is Your Software", Microcomputing, Jul. 1982, pp. 60-62. |