COMPUTER HYBRID DESIGN USING PYTHON SCRIPTING AND CONVENTIONAL 3D MODELING TO BUILD (FCC) CRYSTAL STRUCTURES OF PRECIOUS METALS AND THEIR PREPARING FOR 3D PRINTING - Rozalina Dimova; Violeta Bozhikova; Rusko Filchev; Tihomir Dovramadjiev; Mariana Stoeva; Tihomir A Dovramadjiev; Rozalina Dimova (2021)