Electronic Structure for the Ground and Excited Satate of Si2
Zhang Jing-Lai, Cao Ze-Xing, Gu Jian-De, Tian An-Min, Yan Guo-Sen
Acta Phys. -Chim. Sin. . 1994, (05): 396 -398 .  DOI: 10.3866/PKU.WHXB19940504