We argue that it is the hopping transport that is responsible for broadening of the σxx peaks. An explicit expression for the width Δν of the peak as a function of the temperature T is found. A close relation between the characteristic temperature in the dependence Δν on T and that in the variable-range-hopping exponent at an integer ν is established. Broadening of the peak with increasing current is also explained. The current J is shown to act like the effective temperature TeffJ1/2 if TeffT. The anomalous behavior of two peaks which are close to each other (spin split, e.g.) is considered.