“…[5,8], the Fermi surface of CeIn 3 at ambient pressure is approximately similar to that of LaIn 3 , although it is strongly modified by the magnetic Brillouin zone boundaries. The dHvA frequency of branch "d", observed experimentally in the whole angle region, is in good agreement with the theoretical branch "d" of LaIn 3 in magnitude, although branch "d" in CeIn 3 corresponds to a nearly spherical Fermi surface, not possessing the slender arm along 1 1 1 as in LaIn 3 and is slightly large in volume of the Fermi surface compared to LaIn 3 .…”