On the evolutionary model of progenitors of EHBs after critical Roche lobe overfillingPustõlnik, Izold; Pustõnski, Vladislav-VeniaminBinary stars as critical tools and tests in contemporary astrophysics (IAU S240)2007 / p. 389-393https://www.tandfonline.com/doi/pdf/10.1080/10556790701312590