The research is published in two papers in 'Development':
Susanne C Van den Brink, Peter Baillie-Johnson, Tina Balayo, Anna-Katerina Hadjantonakis, Sonja Nowotschin, David A. Turner and Alfonso Martinez Arias : Symmetry breaking, germ layer specification and axial organisation in aggregates of mouse ES cells. Development; 4 Nov 2104.
Read this OPEN ACCESS paper at : http://dev.biologists.org/content/141/22/4231.abstract
David A. Turner, Penelope C. Hayward, Peter Baillie-Johnson, Pau Rue, Rebecca Broome, Fernando Faunes and Alfonso Martinez Arias : Wnt/β-catenin and FGF signalling direct the specification and maintenance of a neuromesodermal axial progenitor in ensembles of mouse ES cells. Development; 4 Nov 2104.
Read this OPEN ACCESS paper at : http://dev.biologists.org/content/141/22/4243.abstract
More on the University of Cambridge news pages at: http://www.cam.ac.uk/research/news/shaping-up-researchers-reconstruct-early-stages-of-embryo-development