Robert Sablatnig Christian Menard On Estimating the Position of Fragments on Rotational Symmetric Pottery. 455-462 1999 conf/3dim/1999 3DIM https://doi.org/10.1109/IM.1999.805377 https://doi.ieeecomputersociety.org/10.1109/IM.1999.805377 db/conf/3dim/3dim1999.html#SablatnigM99