2005 | ||
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2 | EE | Alfonz Haviar, Judita Lihová: Varieties of Posets. Order 22(4): 343-356 (2005) |
2001 | ||
1 | EE | Pavel Hrnciar, Alfonz Haviar: All trees of diameter five are graceful. Discrete Mathematics 233(1-3): 133-150 (2001) |
1 | Pavel Hrnciar | [1] |
2 | Judita Lihová | [2] |