1. Initiation of the cell cycle and establishment of bilateral symmetry in Xenopus eggs;Kirschner,1980
2. Axis specification in amphibian eggs;Malacinski,1984
3. Effects of gravity perturbation on developing animals systems;Malacinski;Adv. Space Res,1986
4. Twin formation in Xenopus laevis eggs centrifuged before first cleavage;Kunieda;Zool. Sci.,1987
5. Bifurcation of the amphibian embryos axis: Analysis of variation in response to egg centrifugation;Neff,1990