1. Complex Logarithm Map: Escher and the Droste Effect  
   Hendrik Lenstra, Escher's Gallery, Univ. Leiden, The Netherlands
2. Logarithm  
   Eric Weisstein, World of Mathematics, Wolfram Res., Inc., Champaign, IL   
3. Principal Branch  
   Eric Weisstein, World of Mathematics, Wolfram Res., Inc., Champaign, IL   
4. The Complex Exponential and Complex Logarithm  
   Thomas F. Banchoff, Math. Dept., Brown University, Providence, RI  
5. Exponential and Logarithm  
   Nils Andersson, Math. Dept., University of Southampton, U. K.
6. A Theorem on the Complex Logarithm Function  
   Michael W. Botsko, Saint Vincent College, Math. Dept.,  , Latrobe, PA
7. Logarithm  
   Bernd Thaller, Institute of Mathematics, University of Graz, Austria  
8. Definition of  log(z)  
   John L. Orr, Math. Dept.,  Univ. of Nebraska, Lincoln, NB  
9. Applications of Complex-Logarithmic Conformal Mapping in Still Image Coding  
   David E. Lane, Electrical and Computer Engineering Dept., University of Houston, TX  
10. Exponential and Logarithmic Functions  
    School of Computer Science, Carnegie Mellon University, Pittsburgh, PA
11. The Complex Logarithm Function  
    Davide P. Cervone, Math. Dept., Union College, Schenectady, NY  
12. Logarithm  
    R. H. B. Exell, King Mongkut's Univ. of Technology Thonburi, Bangkok, Thailand  
13. Riemann Surface for the Logarithm Picture  
    Martin Zdenek Bazant, Math. Dept., Massachusetts Inst. of Tech., Cambridge, MA
14. Logarithms and Powers  
    Jeff Lewis, Math. Dept., University of Illinois, Chicago, IL  
15. Logarithmic Function  
    Paul Scott, Math. Dept., University of Adelaide, Australia  
16. Branch Cuts, Principal Values, and Boundary Conditions in the Complex Plane  
    School of Computer Science, Carnegie Mellon University, Pittsburgh, PA
17. Module for e^z , sin z, cos z, log(z) PDF  
    Gunter Meyer, Math. Dept., Georgia Institute of Tech., Atlanta, GA  

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(c) John H. Mathews 2003