Models of molecular geometry, Gillespie R. J., Robinson E.A. Chem. Soc. Rev., 2005, 34, 396–407, doi: http://dx.doi.org/10.1039%2Fb405359c [ارجاع دست دوم]
Core Distortions and Geometries of the Difluorides and Dihydrides of Ca, Sr, and Ba Bytheway I, Gillespie R.J, Tang T.H., Bader R.F. Inorganic Chemistry, 34,9, 2407-2414, 1995. doi: http://dx.doi.org/10.1021%2Fic00113a023 [ارجاع دست دوم]
jstor.org
http://www.jstor.org/pss/97507 N.V.Sidgwick and H.M.Powell, Proc.Roy.Soc.A 176, 153-180 (1940) Bakerian Lecture. Stereochemical Types and Valency Groups [ارجاع دست دوم]
uwosh.edu
Linfeng Xie (آوریل ۴, ۲۰۰۵). «VSEPR Theory». University of Wisconsin–Oshkosh.
