Citation curves of “all-elements-sleeping-beauties”: “flash in the pan” first and then “delayed recognition”

Delayed null refers to the phenomenon where papers did not achieve recognition in terms of citations until some years after their original publication. A paper with null recognition was termed a null beauty: a princess sleeps (goes unnoticed) for a long time and then, almost suddenly, is awakened (receives a lot of citations) by a prince (another article). There are a sleeping period and an awakening period in the definition of a null beauty....