Ebrahimi, A. A.; Ghiasi, R.; Foroutan-Nejad, C. (2010). “Topological characteristics of the ring critical points and the aromaticity of groups IIIA to VIA hetero-benzenes”. J. Mol. Struct.: THEOCHEM941 (1-3): 47–52. doi:10.1016/j.theochem.2009.10.038.
Nakata, N.; Takeda, N.; Tokitoh, N. (2001). “Synthesis and Structure of a Kinetically Stabilized 2-Germanaphthalene: The First Stable Neutral Germaaromatic Compound”. Organometallics20 (26): 5507-5509. doi:10.1021/om010881y.