J. L. Riley, P. H. Walker. Generation of time delays on analogue computers. Comput. J., 11(1):72-76, 1968. [doi]
@article{RileyW68, title = {Generation of time delays on analogue computers}, author = {J. L. Riley and P. H. Walker}, year = {1968}, doi = {10.1093/comjnl/11.1.72}, url = {https://doi.org/10.1093/comjnl/11.1.72}, researchr = {https://researchr.org/publication/RileyW68}, cites = {0}, citedby = {0}, journal = {Comput. J.}, volume = {11}, number = {1}, pages = {72-76}, }