Links
Support material:
High-Resolution Space Groups Diagrams and Tables:
http://img.chem.ucl.ac.uk/sgp/large/sgp.htm
International Table for Crystallography:
Data Bank
Cambridge Crystallographic Data Center
International Center Fora Diffraction Data
RCSB Protein Data Bank
http://www.rcsb.org/pdb/home/home.do
others links:
http://nanocrystallography.net/
Crystallographic Software list:
https://www.iucr.org/resources/other-directories/software?result_42405_result_page=A
International Union of Crystallography:
Brazilian Cristalography Association:
http://www.iucr.org/resources/other-directories/organizations/brazil/abcr
Latin American Crystallographic Association