TY  - JOUR
T1  - Propositions Containing Some Properties of Tangents to Circles; and of Trapeziums Inscribed in Circles, and Non-Inscribed. Together with Propositions on the Elliptic Representations of Circles, upon a Plane Surface, by Perspective
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 104
SP  - 348
EP  - 396
PY  - 1814/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1814.0019
M3  - doi:10.1098/rstl.1814.0019
AU  - Hey, R.
ER  -