Kilian, Beate, et al. “The Role of Ppt/Wnt5 in Regulating Cell Shape and Movement during Zebrafish Gastrulation.”10.1016/S0925-4773(03)00004-2__Mechanisms of Development, vol. 120, no. 4, Elsevier, 2003, pp. 467–76, doi:10.1016/S0925-4773(03)00004-2.