att.internetMedia provides attributes for specifying the type of a computer resource using a standard taxonomy.
Modultei — The TEI Infrastructure [binaryObject graphic] equiv ptr ref
mimeType (MIME media type) specifies the applicable multimedia internet mail extension (MIME) media type
Zustand Optional
Datentyp 1–∞ Vorkommen von teidata.word durch Leerzeichen getrennt

In this example mimeType is used to indicate that the URL points to a TEI XML file encoded in UTF-8.

<ref mimeType="application/tei+xml; charset=UTF-8"