Walker, R., Stephens, T., Greenfield, C., Gill, S., Healy, D. and Poppe, S. 2021. Segment tip geometry of sheet intrusions, I: Theory and numerical models for the role of tip shape in controlling propagation pathways. Volcanica. 4, 2 (Oct. 2021), 189–201. DOI:https://doi.org/10.30909/vol.04.02.189201.