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Abstract. The lifetimes have been determined for the 2 +, 0 +' and 4 + states in l~176 and lOZMo using the recoil-distance Doppler-shift method. The states have been excited in l~176 by Coulomb excitation and in 1~ by the two-neutron transfer reaction induced by 180 ions on a l~176 target. The study of the excitation function for the elastic and inelastic scattering on the ground and first excited 2 + state in a~176 at beam energies between 20 and 61 MeV shows that 40 MeV is the highest incident energy for pure Coulomb excitation. Above this energy nuclear absorption sets in and nuclear scattering contributes to the excitation of the 2 + state of l~176 From the lifetimes of the 2 + and 4 + states deformation parameters of [/3] =0.21 and 1//1 =0.31 for ~~176 and ~~ respectively were deduced. The 0 +' levels are not shape isomeric states, as suggested earlier, but they decay by enhanced E2 transitions to the first 2 + states. From a comparison with similar states in other transitional nuclei it is suggested that they are band heads for /3 vibrational bands.