Perfect codes in regular graphs I. Dvořáková-Rulićová (1988) Commentationes Mathematicae Universitatis Carolinae
Reconstruction theorems for centered functions and perfect codes. Avgustinovich, S.V., Vasil'eva, A.Yu. (2008) Sibirskij Matematicheskij Zhurnal
Structural properties of twin-free graphs. Charon, Iréne, Honkala, Iiro, Hudry, Olivier, Lobstein, Antoine (2007) The Electronic Journal of Combinatorics [electronic only]
Ternary constant weight codes. Östergård, Patric R.J., Svanström, Mattias (2002) The Electronic Journal of Combinatorics [electronic only]
The (16,6,2) designs. Assmus, E.F.jun., Salwach, Chester J. (1979) International Journal of Mathematics and Mathematical Sciences
The Mathieu group M 12 and its pseudogroup extension M 13 . Conway, John H., Elkies, Noam D., Martin, Jeremy L. (2006) Experimental Mathematics
The number of inequivalent ( 2 R + 3 , 7 ) R optimal covering codes. Kéri, Gerzson, Östergård, Patric R.J. (2006) Journal of Integer Sequences [electronic only]
Transition restricted Gray codes. Bultena, Bette, Ruskey, Frank (1996) The Electronic Journal of Combinatorics [electronic only]