by Iarussi, Emmanuel, Bommes, David, Bousseau, Adrien
Published in ACM transactions on graphics (01.04.2015)

by Jackson, Bret, Keefe, Daniel F.
Published in IEEE transactions on visualization and computer graphics (01.04.2016)

by Severn, Aaron, Samavati, Faramarz F., Cherlin, Joseph J., Costa Sousa, Mario, Jorge, Joaquim A.
Published in Sketch-based Interfaces and Modeling (2011)

by Fan, Lubin, Wang, Ruimin, Xu, Linlin, Deng, Jiansong, Liu, Ligang
Published in Computer graphics forum (01.10.2013)