  The explicit one-dimensional integral representations for isovector nucleon
form factors are constructed by solving the unitarity relations in terms of the
pion form factor and imaginary parts of the t-channel p-wave $\pi N$-scattering
amplitudes. The possibility of computation of the high-energy parts of the
integrals with the use of the information on the low-energy real parts of the
$\pi N$-scattering amplitudes is discussed.

High Energy Physics - Phenomenology