Figure 6
The network displays multiple clusters of nodes, each represented by circles with labels, connected by thin lines indicating relationships, with labels adjacent to the nodes. Near the center of the figure, a yellow cluster is anchored by the node labeled “xie (2019)”, and “wang (2017)” a pink node which connects outward to several neighbouring nodes including “landi (2019)” to its upper right, “saini (2023)” below it, and “rahi (2022)” toward its upper left, forming the central linking point of the network. To the lower left of this cluster, a large green grouping appears around the node “mackey (2007)”, with additional green nodes such as “hill (2007)” positioned nearby and closely tied to the yellow-centred structure. On the far left side, a red cluster is visible, dominated by the node labeled “revelli (2015)”, which links back toward the central yellow and green groups. To the top centre-right, a blue cluster emerges around the node “velte (2017)”, appearing as a small but distinct grouping. This cluster contains additional nodes such as “velte (2020)”. On the right side of the network, a purple cluster forms around the node labeled “marti (2015)”, with “hou (2019)” placed slightly below it. Below the purple, a green node is shown and labeled “thao (2023)”. Further right, a cluster of pink nodes includes “garcia (2020)” and “chettry (2015)”. At the far right edge of the network, a blue cluster appears, anchored by “lin (2009)”. At the top centre, two brown nodes are present and labeled “b?tas (2021)” and “weber (2017)”.Citation analysis of the top-cited articles in the dataset