Temporal sparse free-form deformations 2013 (1) Wenzhe Shi andMartin Jantsch andPaul Aljabar andLuis Pizarro andWenjia Bai andHaiyan Wang andDeclan P. O'Regan andXiahai Zhuang andDaniel Rueckert, Temporal sparse free-form deformations, Medical Image Anal., volume 17, pp.779–789, 2013