The basic technological solutions of fuel containing materials removal from the upper levels of the object "Ukryttya" - O. V. Balan; V. H. Batii; S. I. Hliebkin; O. S. Lahunenko; S. S. Pidbereznyi; V. M. Rudko; V. M. Shcherbin (Problems of nuclear power plants safety and of Chornobyl, 2015)