@misc{indiciae37af655475ee, title = {DIGITAL COMPUTATIONAL METHODS IN SYMBOLIC LOGIC, WITH EXAMPLES IN BIOCHEMISTRY.}, author = {R S Ledley}, year = {1955}, doi = {10.1073/pnas.41.7.498}, url = {https://pubmed.ncbi.nlm.nih.gov/16589706/}, note = {Source identifier: 16589706} }