[en] High quality data for the (d,⁶Li) reaction on the target nuclei (²⁴Mg, ²⁵Mg, ²⁶Mg, ²⁷Al and ²⁸Si) have been obtained at a bombarding energy of 55 MeV. Angular distributions for in total about 200 transitions have been obtained for the five target nuclei studied and for laboratory angles between 10⁰ and 37⁰. All cross-sections observed were smaller than 30 μb/sr and for most of the transitions in the order of 1 μb/sr. The angular distributions display a very different behaviour for different values of the transferred angular momentum. Transitions to states with known spins and parities have been analysed in the framework of the DWBA, assuming direct α-cluster pick-up. 'Zero-range' (ZR) as well as 'finite-range' (FR) calculations have been performed. Relative α-spectroscopic factors have been extracted by means of this analysis and have been compared to the predictions of the SU(3) model and the shell model. Some attention has been paid to the importance of other than direct cluster pick-up reaction mechanisms, in particular to the importance of two-step processes in which the transfer of a cluster is followed by inelastic excitation of the residual nucleus. (Auth.)