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Atomic, Molecular, and Optical Science: An Investment in the Future
FIGURE C.2 Countries of origin of papers that cite papers in AMO science published in the journals listed in Table C.1 in (a) 1981 and (b) 1989. The citing intervals are 1981 to 1983 and 1989 to 1991, respectively. The horizontal bars represent the numbers of citations from each of the countries indicated expressed as a percentage of the total number of citations in each period.
FIGURE C.3 Countries of origin of papers that cite papers in "hot topic" areas published in 1989, in the interval from 1989 to 1991. The horizontal bars represent the numbers of citations from each of the countries indicated expressed as a percentage of the total number of citations in each area.
