A Toffoli gate can be decomposed into a circuit of 1- and 2-qubit gates

Question

While reseaching a way to implement a 3 qubit Toffoli gate, I came across this circuit:

However, I cannot find a proper source for this circuit. Can anyone link a cited paper.

Answer 1

I believe the origin is this paper:

arXiv: https://arxiv.org/abs/quant-ph/9503016

publication: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.52.3457