1. Complex Power Series-A Vector Field Visualization (in Notes)  
   Alan D. Gluchoff  
   Mathematics Magazine, Vol. 66, No. 3. (Jun., 1993), pp. 189-191, Jstor.  
2. The Vector Field Approach in Complex Analysis  
   Braden, Bart  
   Visualization in Teaching and Learning Math., Providence, R.I., Math. Assoc. of Amer., (1991), pp. 191-196.  
3. Polya's Geometric Picture of Complex Contour Integrals  
   Bart Braden  
   Mathematics Magazine, Vol. 60, No. 5. (Dec., 1987), pp. 321-327, Jstor.  
4. Selected Topics from Polya's Work in Complex Analysis  
   R. P. Boas  
   Mathematics Magazine, Vol. 60, No. 5. (Dec., 1987), pp. 271-274, Jstor.  
5. Picturing Functions of a Complex Variable (in Computer Corner)  
   Bart Braden  
   The College Mathematics Journal, Vol. 16, No. 1. (Jan., 1985), pp. 63-72, Jstor.  
6. Vektornye polya na ploskosti. (Russian)
   [Vector fields in the plane]
   Krasnosel 'skiui, M. A.; Perov, A. I.; Povolockiui, A. I.; Zabreuiko, P. P.  
   Gosudarstv. Izdat. Fiz.-Mat. Lit., Moscow 1963 245 pp., MathSciNet.    

(c) John H. Mathews 2006