Local and global behaviour of nonlinear equations with natural growth   terms
  This paper concerns a study of the pointwise behaviour of positive solutions to certain quasi-linear elliptic equations with natural growth terms, under minimal regularity assumptions on the underlying coefficients. Our primary results consist of optimal pointwise estimates for positive solutions of such equations in terms of two local Wolff's potentials. 
Benjamin J. Jaye and Igor E. Verbitsky
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