by Machado, Gustavo, Boblest, Sebastian, Ertl, Thomas, Sadlo, Filip
Published in Computer graphics forum (01.06.2016)

by Ackaah, Williams, Bogenberger, Klaus, Bertini, Robert L., Huber, Gerhard
Published in IFAC-PapersOnLine (2016)

by Horing, Norman J.M., Sabeeh, Kashif, Fessatidis, Vassilios
Published in Physics letters. A (21.09.1998)