publication venue for Erratum to "On a classical theorem on the diameter and minimum degree of a graph. 34:1907-1910. 2018 On a classical theorem on the diameter and minimum degree of a graph. 33:1477-1503. 2017 Characterization of Gromov hyperbolic short graphs. 30:197-212. 2014 Gromov hyperbolicity of periodic planar graphs. 30:79-90. 2014 Twists and Gromov Hyperbolicity of Riemann Surfaces. 27:29-44. 2011