Tillmann, Stephan Max Planck Institute for Mathematics, Max Planck Society;
Jaco_Bounds for genus_oa_2016.pdf (Any fulltext), 2MB
Jaco, W., Johnson, J., Spreer, J., & Tillmann, S. (2016). Bounds for the genus of a normal surface. Geometry & Topology, 20(3), 1625-1671. doi:10.2140/gt.2016.20.1625.