Each author belonged to exactly one of the three areas - Manufacturing, Automation and Logistics. Four of the authors were from India and two each were from Japan and China. The total number of papers written by A, D, G and H was double the total number of papers written by the other four authors. Every author wrote at least one paper and at most three papers. Five papers were scheduled in each of the first two issues, while four were scheduled in each of the last two issues.
Each of the research papers was written by exactly one of the eight authors. Directions for the questions 25 to 30: A journal plans to publish 18 research papers, written by eight authors (A, B, C, D, E, F, G, and H) in four issues of the journal scheduled in January, April, July and October.
