The paper “Ambitwistor Yang-Mills theory revisited“, co-authored by Leron Borsten (Hertfordshire), Branislav Jurčo (Charles University, Prague), Hyungrok Kim (Hertfordshire), Christian Saemann (Heriot-Watt), and Martin Wolf, has been published in the journal Annales Henri Poincaré. The paper is open access and freely available (link here). The screenshot below shows the front page along with the abstract.