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| 1989 | ||
|---|---|---|
| 2 | Stephen Schon, Omar Keith Helferich: Expert System Applications in Customer Service. DATA BASE 20(2): 38-46 (1989) | |
| 1987 | ||
| 1 | Stephen Schon, Omar Keith Helferich: Expert System Applications in Customer Service. SIGBDP-SIGCPR 1987: 140-162 | |
| 1 | Stephen Schon | [1] [2] |
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