In his diary , Roerich complained that the site had been reduced drastically by road builders .
Excavations have been undertaken intermittently since that period by many persons , including Nicholas Roerich in 1903 .
In Nicholas Roerich 's diary , Nicholas Roerich complained that the site had been reduced drastically by road builders .
Excavations have been undertaken intermittently since that period by many persons , including Nicholas Roerich in 1903 .