Linked from
The 12 pages that link to GSI Helmholtz Centre for Heavy Ion Research, each with the reason it gives.
Heavy-ion fusionRelated: Its accelerator experiments used fusion to synthesize superheavy nuclei.
CoperniciumRelated: The laboratory's experiments produced the first reported copernicium atoms.
MeitneriumRelated: Its team produced and identified the first accepted atoms of meitnerium.
HassiumRelated: The Darmstadt team at GSI reported the first production of hassium in 1984.