Reference

Main functions
xwalk_ags()	Crosswalk Municipality or District Statistics
Utilities
format_ags()	Formats AGS with a Leading Zero
code_bundesland()	Convert the Name or the AGS of a Bundesland
ags_dist()	Defines a distance metric for the AGS
Data
btw_sn	Number of voters and valid votes in Saxony (1994-2017)