Crashed on parsing entries where the last key is a single value.
Example:
@InProceedings{ ad-swrvn-12,
author = {Stefan Albrecht AND Peter Decker},
title = {Schnelle Wege zur Restbussimulation: Virtuelle Netzwerke
ohne Programmier-Know-how erstellen},
booktitle = {Automobil Elektronik},
month = jun,
year = 2012
}
Crashed on parsing entries where the last key is a single value. Example: