The present invention enables researchers to deal in images, graphs, tables, data sets, etc., derived incidentally in experiments when creating paper, contribution, and poster presentation data presented to a society or an association, through a Web or an app. In the case of app, while presentation data is being viewed offline in a conference presentation room, or the like, when an app of a smartphone is executed to illuminate presentation data, incidental data belonging to the presentation data is displayed in the form of augmented reality on a screen of the smartphone and desired data among them can be purchased.
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