1. A Note on the Snake-in-the-Box Problem, unpublished manuscript; Some Problems in Combinatorial Analysis;Abbott,1965
2. Error Correction and Circuits on the n-Cube;Chien,1964
3. Lengths of Snakes in Boxes;Danzer;J. Combinatorial Theory,1967
4. An Upper Estimate of the Length of a Cycle in the n-Dimensional Unit Cube;Glagolev;Diskret. Analiz.,1966
5. Unit-Distance Error-Checking Codes;Kautz;IRE Trans. Electronic Computers,1958