Obtaining Boron Carbide and Nitride Matrix Nanocomposites for Neutron-Shielding and Therapy Applications oleh Levan Chkhartishvili, Shio Makatsaria, Nika Gogolidze, Otar Tsagareishvili, Tamaz Batsikadze, Matlab Mirzayev, Shalva Kekutia, Vladimer Mikelashvili, Jano Markhulia, Tamaz Minashvili, Ketevan Davitadze, Natia Barbakadze, Tamar Dgebuadze, Ketevan Kochiashvili, Rusudan Tsiskarishvili, Roin Chedia