Peter Scherk

Foundations of geometry : selected proceedings of a conference

Peter Scherk, 1976 .

On the decomposition of orthogonalities into symmetries

Peter Scherk, P. Scherk, 1950 .

Homographies, quaternions and rotations

Peter Scherk, P. D. Val, Patrick Du Val, 1966 .

Some Concepts of Conformal Geometry

Peter Scherk, 1960 .