@inproceedings { MRP+11, title = {A Quantitative Approach to the Contrast and Stability of Sounds}, booktitle = {QITL-4 4th Conference on Quantitative Investigations in Theoretical Linguistics}, month = {mar}, note = {Talk}, pages = {59-64}, url = {http://korpling.german.hu-berlin.de/qitl4/QITL4\_Proceedings.pdf}, year = {2011}, author = {Mayer, Thomas and Rohrdantz, Christian and Plank, Frans and Butt, Miriam and Keim, Daniel A.} }