@misc{indiciae64f3096960ff, title = {Time limits for completing fixed ratios. II. Stimulus specificity.}, author = {M D Zeiler}, year = {1972}, doi = {10.1901/jeab.1972.18-243}, url = {https://pubmed.ncbi.nlm.nih.gov/16811628/}, note = {Source identifier: 16811628} }