Two singularities of space curves 
By: by Alice Turner Schafer ...
Published: 1944
Place of publication: [n.p
Language: eng
Number of pages: 670
Subjects: Curves of double curvature.; Projective differential geometry.
Notes: Part of thesis (PH. D.)--University of Chicago, 1942.
"Reprinted from Duke mathematical journal, vol. 11, no. 4, December, 1944."