Synthesis and Characterization of Ym@C2n
Shi Zu-Jin, Zhou Xi-Huang, Jin Zhao-Xia, Gu Zhen-Nan, Wu Yi, Fu Hua, Wang Jing-Zun
Acta Phys. -Chim. Sin. . 1996, (03): 235 -238 .  DOI: 10.3866/PKU.WHXB19960309