Ii. Moiseev et al., PALLADIUM-561 GIANT CLUSTERS - CHEMICAL ASPECTS OF SELF-ORGANIZATION ON A NANO LEVEL, Mendeleev communications, (3), 1995, pp. 87-89
Three packing modes: FCC, nearly icosahedral (or multiply twinned) and
random, for the cores of palladium-561 giant clusters, were evidenced
by high resolution electron microscopy and electron diffraction data.