Benedek Nagy. Geometry of Neighborhood Sequences in Hexagonal Grid. In Attila Kuba, László G. Nyúl, Kálmán Palágyi, editors, Discrete Geometry for Computer Imagery, 13th International Conference, DGCI 2006, Szeged, Hungary, October 25-27, 2006, Proceedings. Volume 4245 of Lecture Notes in Computer Science, pages 53-64, Springer, 2006. [doi]