@misc{indiciae135514bd9943, title = {Response-contingent intertrial intervals in concept identification.}, author = {L E Bourne and D H Dodd and D E Guy and D R Justesen}, year = {1968}, doi = {10.1037/h0025696}, url = {https://pubmed.ncbi.nlm.nih.gov/5650576/}, note = {Source identifier: 5650576} }