This is BibTeX, Version 0.99d (TeX Live 2021/W32TeX)
Capacity: max_strings=200000, hash_size=200000, hash_prime=170003
The top-level auxiliary file: Main.aux
The style file: ieeetr.bst
Database file #1: Literatur.bib
Warning--empty journal in colorize
You've used 11 entries,
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(There was 1 warning)