# 7.6 Daten bereinigen
## Literatur
* Owen Stephens: [A worked example of fixing problem MARC data: Part 4 – OpenRefine](http://www.meanboyfriend.com/overdue_ideas/2015/07/worked-example-fixing-marc-data-4/)
* Library Carpentry OpenRefine: [Basic OpenRefine functions II](https://data-lessons.github.io/library-openrefine/04-basic-functions-II/)
