1. The crystal structure of calcium samarium oxide borate Ca8Sm2O2 (BO3) 6;Khamaganova;RUSS. J. INORG. CHEM+,1991
2. Structural investigations of new calcium - rare earth (R) oxyborates with the composition Ca4RO(BO3)3
3. Crystal structures of binary oxoborates LnCa4O (BO3) 3 (Ln=Gd, Tb, and Lu) and Eu2CaO(BO3)2;Ilyukhin;RUSS. J. INORG. CHEM+.,1993
4. A new non-linear and neodymium laser self-frequency doubling crystal with congruent melting: GdCa4O (BO3) 3 (GdCOB);Aka;European journal of solid state and inorganic chemistry,1996
5. Nonlinear optical properties of LaCa_4O(BO_3)_3