The CODEN, designed by Charles Bishop (of the Chronic Disease Research Institute at the University at Buffalo, State University of New York, retired), was initially thought as a memory aid for the publications in his reference collection.
CODEN, navržený Charlesem Bishopem (Chronic Disease Research Institute na univerzitě v Buffalu, State University of New York, v důchodu), byl původně zamýšlen, jako paměťová podpora pro publikace v jeho referenční sbírce.