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| 008 | 200608s9999 xx 000 0 und d | ||
| 082 |
_a1.64404 _bPRI.S |
||
| 100 | _aPRITCHARD,J A T | ||
| 245 | 0 | _aSecurity in On-line Systems | |
| 260 |
_aEngland _bNCC Publication _c1979 |
||
| 300 | _a187p | ||
| 650 | _aComputer Science | ||
| 942 |
_cBK _2DDC |
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| 999 |
_c12684 _d12684 |
||