Stankova, Z., & Rike, T. (2008). A decade of the Berkeley Math Circle: The American experience /ed.by. Mathematical Sciences Research Institute American Mathematical Society.

Stankova, Zvezdelina,ed, and Tom,ed Rike. A Decade of the Berkeley Math Circle: The American Experience /ed.by. [Berkeley, CA] : Providence, R.I.: Mathematical Sciences Research Institute American Mathematical Society, 2008.

Stankova, Zvezdelina,ed, and Tom,ed Rike. A Decade of the Berkeley Math Circle: The American Experience /ed.by. Mathematical Sciences Research Institute American Mathematical Society, 2008.