@misc{indiciaee0789155369b, title = {Generalization gradient shape and summation in steady-state tests.}, author = {D S Blough}, year = {1969}, doi = {10.1901/jeab.1969.12-91}, url = {https://pubmed.ncbi.nlm.nih.gov/16811343/}, note = {Source identifier: 16811343} }