Figure 6
A scatter plot mapping co-cited authors with colored lines connecting various authors. The plot includes dozens of data points representing individual authors. The x-axis and y-axis represent the authors' names and their co-citation frequencies. The values are actual. The plot shows clusters of authors with frequent co-citations, indicating strong collaborative networks. Some authors are highlighted with different colors, suggesting varying levels of co-citation. The overall trend indicates several prominent clusters of co-cited authors. The dataset includes a total of 20,330 authors, with a minimum of 40 citations per author. Notable authors include Sarkis with 90 citations, ranking first, and Ivanov, Kirchherr, and Upadhyay with 40 citations each, ranking last based on the citation threshold. The plot visually represents the co-citation relationships among these authors.Mapping of co-cited authors. Sources: VOSviewer, Authors’ collaboration