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1984 | ||
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2 | Anton Kotzig, Philip J. Laufer: The Minimum Number of Components in 4-Regular Perfect Systems of Difference Sets. J. Comb. Theory, Ser. A 37(3): 370-373 (1984) | |
1983 | ||
1 | EE | Philip J. Laufer, Jean M. Turgeon: On a conjecture of Paul Erdös for perfect systems of difference sets. Discrete Mathematics 47: 255-266 (1983) |
1 | Anton Kotzig | [2] |
2 | Jean M. Turgeon | [1] |