1. An Algebra for Periodically Time-varying Linear Binary Sequence Transducers;Huffman,1959
2. On Time-varying Coding Networks;Marcovitz,1961
3. Gedanken-Experiments on Sequential Machines;Moore,1956
4. Method for Synthesizing Sequential Circuits;Mealy;Bell System Tech. Jour.,1955
5. Analysis of Sequential Machines;Aufenkamp;IRE Trans.,1957