Number | Name | Date | Kind |
---|---|---|---|
4020395 | Erickson et al. | Apr 1977 | |
4644255 | Freymuth | Feb 1987 | |
4665459 | Bynum et al. | May 1987 | |
4679112 | Craig | Jul 1987 | |
4705322 | Yiannoulos | Nov 1987 |
Entry |
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Ralston, Anthony, ed. Encyclopedia of Computer Science and Engineering, 1983, pp. 774-775. |