Smoothing of Polyhedral Hodels. - Per-Olof Fjällström (SCG, 1986)

A Sublogarithmic Convex Hull Algorithm. - Per-Olof Fjällström; Jyrki Katajainen; Christos Levcopoulos; Ola Petersson (BIT, 1990)

Evaluation of a Delaunay-based method for surface approximation. - Per-Olof Fjällström (Comput. Aided Des., 1993)

Evaluation of Range Searching Methods for Contact Searching in Mechanical Engineering. - Per-Olof Fjällström; Jan Petersson; Larsgunnar Nilsson; Zhi-Hua Zhong (Int. J. Comput. Geom. Appl., 1998)