John R. Michener. The Application of Key Dependent and Variable Rotor Sets to Generalized Rotor Cryptographic Systems. Cryptologia, 11(3):166-171, 1987. [doi]
@article{Michener87a, title = {The Application of Key Dependent and Variable Rotor Sets to Generalized Rotor Cryptographic Systems}, author = {John R. Michener}, year = {1987}, doi = {10.1080/0161-118791861983}, url = {http://dx.doi.org/10.1080/0161-118791861983}, researchr = {https://researchr.org/publication/Michener87a}, cites = {0}, citedby = {0}, journal = {Cryptologia}, volume = {11}, number = {3}, pages = {166-171}, }