The application of Pluecker’s line-geometry to the study of polar properties of quadrics Josef Srovnal (1971) Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica-Physica-Chemica
The intersection conics of six straight lines. Schröcker, Hans-Peter (2005) Beiträge zur Algebra und Geometrie