Östergård, Patric R.J., Svanström, Mattias (2002)

The Electronic Journal of Combinatorics [electronic only]

Assmus, E.F.jun., Salwach, Chester J. (1979)

International Journal of Mathematics and Mathematical Sciences

Conway, John H., Elkies, Noam D., Martin, Jeremy L. (2006)

Experimental Mathematics

Kéri, Gerzson, Östergård, Patric R.J. (2006)

Journal of Integer Sequences [electronic only]

Bultena, Bette, Ruskey, Frank (1996)

The Electronic Journal of Combinatorics [electronic only]