Mosalkova, Anastasiya P.; Voitekhovich, Sergei V.; Lyakhov, Alexander S.; Ivashkevich, Ludmila S.; Degtyarik, Mikhail M.; Gaponik, Pavel N.; Ivashkevich, Oleg A. Inorganic Chemistry Communications, 2009 , vol. 12, # 10 p. 998 - 1000