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* Large systems \cite{Filippi_2012}, \cite{Valsson_2010}  * Forces: correlated sampling \cite{Filippi_2000} and space warp coordinate transformation \cite{Umrigar_2009}  Work by Assaraf and Caffarel on improved estimators \cite{Assaraf_2000} and \cite{Assaraf_2003}  * Static electric properties (dipole and quadrupole moments, static polarizabilities) \cite{Coccia_2012} \cite{Coccia_2012}, \cite{Li_2007}  * Chiroptical properties:  * Eliel "Stereochemistry of organic compounds" (find appropriate ref)