TY  - JOUR
T1  - Distribution of the Surface of the Third Order into Species, in Reference to the Absence or Presence of Singular Points, and the Reality of Its Lines. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 12
SP  - 327
EP  - 329
PY  - 1862/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1862.0073
M3  - doi:10.1098/rspl.1862.0073
AU  - Schlaffle, D.
ER  -