British Computer Society Journal, Vol. 49, No. 6, pp. 650 – 656.
https://doi.org/10.1093/comjnl/bxl041
Access on this site is behind a BCS/Oxford paywall but will be available to people who are members of certain institutions and libraries. Free access to scanned copy is available via the CCH website on the link below
https://www.computinghistory.org.uk/det/53776/LEO%20II%20and%20the%20Model%20T%20Ford