TY  - JOUR
A1  - Doe, John
T1  - This is another unpublished test document
N2  - LAtex Formel

x^2 + 2x + a_k
KW  - information science
Y1  - 2008
UR  - https://opus4mig.kobv.de/opus4-demo/frontdoor/index/index/docId/97
ER  -