(en) Sam Vandervelde, Circle in a Box, vol. 2, Berkeley, Calif., Mathematical Sciences Research Institute and American Mathematical Society, coll. « MSRI mathematical circles library », , 4, 34 (ISBN978-0-8218-4752-7, lire en ligne).
Ralph Vigoda, « Bulgarian Math Whiz Wows 'Em: Zvezdelina Stankova Already Is Joining The Ranks Of Top Mathematicians. "She's A Genius," Says Bryn Mawr's Head Of Math », The Philadelphia Inquirer, (lire en ligne).
Sarah Weld, « Proving Their Passion: The Berkeley Math Circle gives math kids a place to find solutions—together », The East Bay Monthly, (lire en ligne)