Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Pre-Hispanic City and National Park of Palenque' has mentioned 'Archaeologists' in the following places:
Occurrence Sentence Text Source
After him, a king came to power, nicknamed "Casper" by archaeologists.
The temple also has a duct structure that still is not completely understood by archaeologists.
In the last 15 or 20 years, a great deal more of the site has been excavated, but currently, archaeologists estimate that only 5% of the total city has been uncovered.