A method of quark counting for inclusive processes

A method is developed for describing processes of interaction of hadrons with large momentum transfer on the basis of three-dimensional quasipotential equations in quantum field theory on a null plane with allowance for effects of quantum chromodynamics. As an illustration, the asymptotic behavior of the electromagnetic form factor of a composite quark-antiquark system is found. The consequences of quark counting rules for processes of inclusive production of hadrons with large $P_\perp$ are studied.