Philip Johnson: Life and Work, by Franz Schulze (Alfred A. Knopf, 1994)

This source backs 16 claims across the atlas. As facts: 12 well-attested. Plus 4 entities citing it as a general reference with no single fact or relationship attached.

Disposition By Topic

• Articles, 8 claims: 6 well-attested, 2 general references.
• Artists, 5 claims: 3 well-attested, 2 general references.
• Sources, 3 claims: 3 well-attested.