Interactive Manipulation of Voxel Volumes with Free-formed Voxel Tools. - Jörg Ayasse; Heinrich Müller (VMV, 2001)

Sculpturing on Discrete Displacement Fields. - Jörg Ayasse; Heinrich Müller (Comput. Graph. Forum, 2002)

Discrete displacement fields: a versatile representation of geometry for simulation in computer-aided manufacturing. - Jörg Ayasse (2003)