1. Graeffe's Method  
   Eric Weisstein, MathWorld, Wolfram Research Inc., Champaign, IL  
2. Graeffe's Method  
   Rainer Radok, Bangkok, Thailand
3. Interactive Code Generation: Graeffe's Root-Squaring Method  
   Andreas Strotmann, REDUCE 3.5 Documentation, Universitätsarchiv Köln, Germany
4. A Short History of the Quintic
   Library, Wolfram Research Inc., Champaign, IL  
5. Factoring polynomials by means of Graeffe's iteration and structured matrices  
   D. A. Bini; G. Fiorentino; L. Gemignani; B. Meini, Dipartimento di Matematica, Università di Pisa, Italy  
6. Algorithm for Approximating Complex Polynomial Zeros  
   Victor Pan  
   Lehman College, CUNY, NY
7. Vieta's Formulas  
   Eric Weisstein, MathWorld, Wolfram Research Inc., Champaign, IL  
8. Graeffe's Method  PDF  
   John A. Reed, Mechanical, Industrial & Manufacturing Engineering Dept.,  Univ. of Toledo, Toledo, OH  
9. A generalized Graeffe's iteration  PS  
   Luca Gemignani, Dipartimento di Matematica, Università di Pisa, Italy
10. Tangent Graeffe Iteration PDF  
    Gregorio Malajovich; Jorge P. Zubelli, Dept. de Matemática Aplicada, Univ. Federal do Rio de Janeiro, Brasil
11. Karl Heinrich Gräffe  
    School of Mathematics and Statistics, University of St Andrews, Scotland  

(c) John H. Mathews 2005