  Analytical method is applied for description of the small angle Bhabha
scattering at LEP1. Inclusive event selection for asymmetrical wide-narrow
circular detectors is considered. The QED correction to the Born cross-section
is calculated with leading and next-to-leading accuracy in the second order of
perturbation theory and with leading one --- in the third order. All
contributions in the second order due to photonic radiative corrections and
pair production are calculated starting from essential Feynman diagrams. The
third order correction is computed by means of electron structure function.
Numerical results illustrate the analytical calculsations.
