Field 'Discipline' : list too long

[hwidmann]

Discipline has in some cases hundreds of values

Sample :
http://b2find.eudat.eu/dataset/5e1f5dcc-4a94-53cc-bf55-79733ed6f538

Ok, not hundreds of words (maybe we avoid this meanwhile by cutting the value after 20 words or similar?) , but too many, and the text
'B. Information use and sociology of information::BH. Information needs and information requirements analysis'
contains information about the discipline, but assignes not a discipline as only 'sociology' . So the question is, how to grep out a senseful discipline (by white lists ??)