1. Runge-Kutta-Fehlberg Method  
   John Loomis, Computer Science Dept., University of Dayton, OH  
2. Runge-Kutta-Fehlberg Method  
   D. F. M. Hermans, Math. Dept., The University of Birmingham, U. K.
3. The Runge-Kutta-Fehlberg Method  
   Edward Rozema, Math. Dept., University of Tennessee at Chattanooga, TN  
4. Runge-Kutta-Fehlberg integrator  
   Sergey Sadov, Math. Dept.,  Memorial University of Newfoundland, St. John's, Canada  
5. Runge-Kutta-Fehlberg ODE Solver  
   John Burkardt  Mathematics Department at Iowa State University  Ames, Iowa
6. ... A 4th order Runge-Kutta-Fehlberg method  
   The Museum of HP Calculators
7. Adaptive Stepsize Control for Runge-Kutta  PDF  
   Numerical Recipes Software's Books On-Line, Cornell University Library,  Ithaca, NY  
8. Runge-Kutta-Nystrom integrator  
   Beatrice Paternoster, Antonio Stecca, Wolfran Research, Inc.  
9. First-order Differential Equations (Runge-Kutta-Merson)  
   Organisation Européenne pour la Recherche Nucléair (CERN), Geneva, Switzerland  
10. Runge-Kutta Methods  
    Rudolf K. Bock, Organisation Européenne pour la Recherche Nucléair (CERN), Geneva, Switzerland  

(c) John H. Mathews 2004