Ingmar Bitter Mie Sato Michael A. Bender Kevin T. McDonnell Arie E. Kaufman Ming Wan CEASAR: a smooth, accurate and robust centerline extraction algorithm. 45-52 2000 IEEE Visualization http://doi.acm.org/10.1145/375213.375217 db/conf/visualization/visualization2000.html#BitterSBMKW00