Fork-join graphs are antimagic
V. N. Kalachev

References
1.	Hartsfield N., Ringel G., Pearls in Graph Theory, Academic Press, Inc., Boston, 1990    ; revised version, 1994
2.	Kayaaslan E., Lambert Th., Marchal L., Ucar B., Scheduling Series-Parallel Task Graphs to Minimize Peak Memory, Research Report RR-8975, Inria Grenoble Rhone-Alpes, Universite de Grenoble, 2016