1. Algebra: An Approach via Module Theory;Adkins,1992
2. Graph Theory with Applications;Bondy,2008
3. Independence of vectors in codes over rings;Dougherty;Des. Codes Cryptogr.,2009
4. Computers and Intractability: A Guide to the Theory of NP-Completeness;Garey,1979
5. Extremal sizes of subspace partitions;Heden;Des. Codes Cryptogr.,2012