@inproceedings{iiasa4064,
       booktitle = {Energy Technologies to Reduce CO2 Emissions in Europe: Prospects, Competition, Synergy, Proceedings of the OECD/IEA Workshop},
           title = {The future of natural gas in Europe},
            year = {1994},
             url = {https://pure.iiasa.ac.at/id/eprint/4064/},
          author = {Messner, S. and Nakicenovic, N.}
}