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at smooth infinity-groupoid I have provided more details for the proof that for a smooth 2-group is the groupoid of smooth -principal 2-bundles, by referring to the above mentioned classifying results: now in the section here
]]>added to principal 2-bundle in a new Properties-section the classification results by Baez-Stevenson, Stevenson-Roberts (for the topological case) and Nikolaus-Waldorf (for the smooth case).
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