Adaptive LightSlice for Virtual Ray Lights. - Roald Frederickx; Pieterjan Bartels; Philip Dutré (Eurographics (Short Papers), 2015)

Combining GPU Tracing Methods within a Single Ray Query. - Pieterjan Bartels; Takahiro Harada (SIGGRAPH Asia Technical Communications, 2022)

GI-1.0: A Fast and Scalable Two-level Radiance Caching Scheme for Real-time Global Illumination. - Guillaume Boissé; Sylvain Meunier; Héloïse de Dinechin; Pieterjan Bartels; Alexander Veselov; Kenta Eto; Takahiro Harada (CoRR, 2023)