[en] New information about rotational bands of strongly deformed nuclei as obtained through in-beam γ-spectroscopic studies as well as Coulomb excitation experiments shall be discussed. Most of the experimental results shall be interpreted within the cranking model considering the motion of independent particles in a rotating deformed potential. The relevant experimental results concern the second band crossing in yrast bands (backbending), the band crossing in side bands and the low-spin members of the s band. Experimental evidence that the backbending behaviour of the yrast bands in the Os nuclei is caused by the crossing of the g band with an isub(13/2) two-quasi-neutron band shall be provided. Furthermore a study of B(E2) values of transitions within and between rotational bands as obtained in a Coulomb excitation experiment shall be discussed. (orig.)