@article {MR2565260,
    AUTHOR = {Yuan, Chunming and Gao, Xiao-Shan},
     TITLE = {A criterion for testing whether a difference ideal is prime},
   JOURNAL = {J. Syst. Sci. Complex.},
  FJOURNAL = {Journal of Systems Science \& Complexity},
    VOLUME = {22},
      YEAR = {2009},
    NUMBER = {4},
     PAGES = {627--635},
      ISSN = {1009-6124},
   MRCLASS = {12E05 (12H10)},
  MRNUMBER = {2565260 (2011a:12005)},
MRREVIEWER = {Philippe Ryckelynck},
       DOI = {10.1007/s11424-009-9192-4},
       URL = {http://dx.doi.org/10.1007/s11424-009-9192-4},
}