Experimental investigation of the reactions _1hn2_1hn5Mg(α,n)_1hn2_1hn8Si [25Mg(alpha,n)28Si], _1hn2_1hn6Mg(α,n)_1hn2_1hn9Si, [25Mg(alpha,n)29Si] {_1hn1_1hn8O(α,n)_1hn2_1hn1Ne [18O(alpha,n)2Ne] and their impact on stellar nucleosynthesis [Elektronische Ressource] / vorgelegt von Sascha Falahat