Extensive excavation of the area, however, has turned up nothing to support the claim.

A more extensive excavation of the area was conducted in 1945.

Extensive excavations and a survey were carried out at in 1962-1964.

Extensive excavations were carried out in 1963 to determine the extent of the remains.

In earth sheltered construction there is often extensive excavation done on the building site.

There have been extensive excavations under an elliptical structure that was probably a house.

The Tel has been subject to archaeological survey, but not to extensive excavations.

Since 1989, despite extensive excavation for new buildings, no war-related bodies have been found.

Casemates were uncovered during extensive excavations between 2003 and 2007.

The abbey stopped being used as a farm and extensive archaeological excavations took place.