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"A note on the number of graceful labellings of paths."
Robert E. L. Aldred, Jozef Sirán, Martin Sirán (2003)
- Robert E. L. Aldred, Jozef Sirán, Martin Sirán:
A note on the number of graceful labellings of paths. Discret. Math. 261(1-3): 27-30 (2003)

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