Ernst Bessel Hagen is not a widely recognized term or individual in historical, scientific, or popular contexts as of my last knowledge update in October 2023. It could possibly refer to a lesser-known figure or be a combination of names or terms that may have relevance in specific fields or discussions that are not broadly documented. If you have more context or details about "Ernst Bessel Hagen," such as the field (e.g., science, literature, etc.
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