@inproceedings{mlsaamultilayeredreferencecorpusfor,
  title = {MLSA --- A Multi-layered Reference Corpus for German Sentiment Analysis},
  author = {Simon Clematide and Stefan Gindl and Manfred Klenner and Stefanos Petrakis and Robert Remus and Josef Ruppenhofer and Ulli Waltinger and Michael Wiegand},
  year = {2012},
  booktitle = {LREC 2012 5},
  url = {https://aclanthology.org/L12-1013},
}