Dudenko, MarharytaOliynyk, Bogdana2019-06-202019-06-202018Dudenko M. On unicyclic graphs of metric dimension 2 with vertices of degree 4 / Dudenko M., Oliynyk B. // Algebra and Discrete Mathematics. - 2018. - Vol. 26, Issue 2. - P. 256-269.2415-721Xhttps://ekmair.ukma.edu.ua/handle/123456789/15997We show that if G is a unicyclic graph with metric dimension 2 and {a, b} is a metric basis of G then the degree of any vertex v of G is at most 4 and degrees of both a and b are at most 2. The constructions of unispider and semiunispider graphs and their knittings are introduced. Using these constructions all unicyclic graphs of metric dimension 2 with vertices of degree 4 are characterized.engraphdistancemetric dimensionunicyclic grapharticleArticle