* 'master' of git.2li.ch:ibz/marketing_AI:
only show cited sources in bibliography
some little changes
add various additions
# Conflicts:
# doku/content.tex
* 'master' of git.2li.ch:ibz/marketing_AI:
add a section about "Vertriebswege"
add the section about conditions
add sectio about the controlling
add various bib entries
correct line length
add citation
write an introduction
add glossary entries for the ang and audioguides
add bib entry for the ang
write the management summary
print unused glossary entries
ignore elisp files