Incremental Instant Radiosity for Real-Time Indirect Illumination. - Samuli Laine; Hannu Saransaari; Janne Kontkanen; Jaakko Lehtinen; Timo Aila (Rendering Techniques, 2007)

Occluder Simplification Using Planar Sections. - Ari Silvennoinen; Hannu Saransaari; Samuli Laine; Jaakko Lehtinen (Comput. Graph. Forum, 2014)