  Slow oscillations (SlO) of magnetoresistance is a convenient tool to measure
electronic structure parameters in quasi-two-dimensional metals. We study the
possibility to apply this method to multi-band conductors, e.g. to iron-based
high-temperature superconducting materials. We show that SlO can be used to
measure the interlayer transfer integral in multi-band conductors similar to
single-band metals. In addition, the SlO allow to measure and compare the
effective masses or the electron scattering rates in various bands.
