  We discuss the problem of classifying Dembowski-Ostrom polynomials from the
composition of reversed Dickson polynomials of arbitrary kind and monomials
over finite fields of odd characteristic. Moreover, by using a variant of the
Weil bound for the number of points of affine algebraic curves over finite
fields, we discuss the planarity of all such Dembowski-Ostrom polynomials.
Planar Dembowski-Ostrom polynomials have applications in many areas including
cryptography and coding theory.
