1. Atiyan M, MacDonland I. Introduction to Commutative Algebra. Menlo Park: Addison-Wesley, 1969
2. Arveson W. Quotients of standard Hilbert modules. Trans Amer Math Soc, 2007, 359: 6027–6055
3. Arveson W. p-Summable commutators in dimmension d. J Oper Theory, 2005, 54: 101–117
4. Arveson W. The Dirac operator of a commuting d-tuple. J Funct Anal, 2002, 189: 53–79
5. Berezovskaja F, Medvedeva N. A complicated Singular point of “Centerfocus” type and the Newton diagram. Selecta Mathematica, 1994, 13: 1–15