<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">N. Stefanou</style></author><author><style face="normal" font="default" size="100%">R. Zeller</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Calculation of shape-truncation functions for Voronoi polyhedra</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physics: Condensed Matter</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1991</style></year></dates><volume><style face="normal" font="default" size="100%">3</style></volume><pages><style face="normal" font="default" size="100%">7599-7606</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The authors develop a new efficient method for calculating the shape-truncation functions of arbitrary Voronoi polyhedra by combining analytical and numerical techniques. Applications are presented for cells of cubic symmetry as well as for hexagonal close-packed (HCP) atomic polyhedra with different values of the c/a ratio. They also discuss an efficient way for performing three-dimensional integrations in electronic-structure calculations (e.g. solve Poisson's equation) using shape functions.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">39</style></issue></record></records></xml>