A.I. Zadoya carried out detailed structural studies of new compounds with hexavalent uranium, which characterizes her as a good specialist in the field of X-ray diffraction and crystal chemistry. In general, results obtained by Zadoya A.I. correspond to the world level as evidenced by the level of her scientific publications. Especially important and novel is observation and description of new type of tetraoxido core in calcium tellurite with U6+.