“…Similar research topics were then grouped into a category that expressed the LRW's research focus. The following 13 research foci were identified: General application of AR in manufacturing [e.g., 21,22]; application of AR in specific industrial sectors [e.g., 16,23]; application of AR in specific industrial tasks [e.g., 24,25]; AR maintenance research [e.g., 26,27]; AR assembly research [e.g., 28,29]; AR in human-robot collaboration [e.g., 30,31]; visualization of communication cues in AR systems [e.g., 32,33]; user-based AR research [e.g., 34,35]; AR smart glasses [e.g., 36,37]; interplay of AR and digital twins [e.g., 38,39]; implementation of AR [40,41]; gamification in AR systems [42,43]; and artificial intelligence in AR systems [44,45].…”