Long, Yangjing Max Planck Institute for Mathematics in the Sciences, Max Planck Society;
Stadler, Peter F. Max Planck Institute for Mathematics in the Sciences, Max Planck Society;
Long, Y., & Stadler, P. F. (2020). Exact-2-relation graphs. Discrete applied mathematics, 285, 212-226. doi:10.1016/j.dam.2020.05.015.