David P. Billington is from what private institution, founded in 1746?
Structural art:  Such works can be classified as structural art when they attain excellence in the three areas of efficiency, economy, and elegance, as defined by Prof. David P. Billington of Princeton University. Princeton University: Princeton University is a private Ivy League research university in Princeton, New Jersey, United States. Princeton University:  Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the nine colonial colleges chartered before the American Revolution.
Princeton University