@inproceedings{ZscheischlerJZ2011, title = {Testing whether linear equations are causal: A free probability theory approach}, author = {Zscheischler, J. and Janzing, D. and Zhang, K.}, pages = {839-847}, editors = {Cozman, F.G. , A. Pfeffer}, publisher = {AUAI Press}, address = {Corvallis, OR, USA}, month = jul, year = {2011}, doi = {}, month_numeric = {7} }