# Reference

0. [Projective Geometric Algebra Done Right](http://terathon.com/blog/projective-geometric-algebra-done-right/)
	0. [Symmetries in Projective Geometric Algebra](http://terathon.com/blog/symmetries-in-projective-geometric-algebra/)
0. [Projective Geometric Algebra](http://projectivegeometricalgebra.org/)
0. [A Swift Introduction to Geometric Algebra](https://www.youtube.com/watch?v=60z_hpEAtD8)
	0. [Addendum to A Swift Introduction to Geometric Algebra](https://www.youtube.com/watch?v=0bOiy0HVMqA)