next, previous Section / Table of Contents / Index This softeware could not have been developed without the help and stimulation from various friends and collegues. At the risk of being unfair to those not mentioned explicitly in the following the author wishes to thank Michel Van Hove (LBL Berkeley) and Phil Watson (OSU Corvallis) whose collaborative efforts on the NIST Surface Structure Database (SSD) stimulated most of the surface visualization concepts used here, John Pendry (IC London) whose comments at the ECOSS-9 conference in Lucerne were instrumental for setting up BALSAC, late Klaus Mueller (TU Erlangen) whose encouraging criticism helped this software a lot, Bernhard Hornfeck (TU Clausthal) who contributed to the mathematical ideas, in particular those concerning solutions of linear diophantine equations, which are behind this software, late Eberhard Traenkle (FU Berlin) who introduced the author to his X.11 c/fortran graphics library which was used in the first Unix version of BALSAC, Joachim Dietze (TU Clausthal) who set the basis for the first VGA graphics assembler library used in the PC version of BALSAC, Donald Buczek, Norbert Paschedag, Leon Urbas (FHI Berlin) who helped one way or other to streamline the X.11 C library used in BALSAC for better performance and greater stablity in a multi-workstation environment, Harald Junkes (FHI Berlin) who helped to develop the binary file utility used to convert BALSAC binary output files to GIF format files. Fritz Rammer (FHI Berlin) who is responsible for the major part of the shell scripts used by BALSAC. He was also essential in setting up the SURFACE EXPLORER (based on BALSAC) which proves to be a valuable World Wide Web tool to examine vicinal crystal surfaces. numerous BALSAC users whose criticism and suggestions helped improve the software beyond what the author had intended when he started developing the software for teaching purposes. next, previous Section / Table of Contents / Index