  The minimal nearest-neighbor tight-binding model with the Peierls
substitution is employed to describe the electronic structure of Bernal-stacked
graphite subject to tilted magnetic fields. We show that while the presence of
the in-plane component of the magnetic field has a negligible effect on the
Landau level structure at the K point of the graphite Brillouin zone, at the H
point it leads to the experimentally observable splitting of Landau levels
which grows approximately linearly with the in-plane field intensity.
