@misc{indiciae2770bacb9c63, title = {The post-reduction donut sign.}, author = {W Rohrschneider and J Tröger and B Betsch}, year = {1994}, doi = {10.1007/bf02012175}, url = {https://pubmed.ncbi.nlm.nih.gov/7936786/}, note = {Source identifier: 7936786} }