Geodesic
On the Hartsfield--Ringel hypothesis: connected unigraphs
Trudy Instituta matematiki, Tome 22 (2014) no. 2, pp. 46-52

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The Hartsfield–Ringel hypothesis about the antimagicness of connected graphs is investigated in the class of connected unigraphs. It is proven that all connected unigraphs with no less than three vertices are antimagic. 
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     author = {V. N. Kalachev},
     title = {On the {Hartsfield--Ringel} hypothesis: connected unigraphs},
     journal = {Trudy Instituta matematiki},
     pages = {46--52},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2014_22_2_a4/}
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V. N. Kalachev. On the Hartsfield--Ringel hypothesis: connected unigraphs. Trudy Instituta matematiki, Tome 22 (2014) no. 2, pp. 46-52. http://geodesic.mathdoc.fr/item/TIMB_2014_22_2_a4/