What is the reference (e.g., paper) for the 3D plane segmentation algorithm used in the Geometry Point Cloud library?

### Checklist

- [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues).
- [X] For Python issues, I have tested with the [latest development wheel](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip).
- [X] I have checked the [release documentation](http://www.open3d.org/docs/release/) and the [latest documentation](http://www.open3d.org/docs/latest/) (for `master` branch).

### My Question

Hi,

I noticed there is no reference reported for the Plane Segmentation algorithm, neither in the documentation page nor in the .h and.cpp files of the repository, whereas other algorithms have a reference mentioned in the documentation and part of the list in [http://www.open3d.org/docs/release/tutorial/reference.html](http://www.open3d.org/docs/release/tutorial/reference.html).

Would the following be the right reference for the plane segmentation algorithm?

N. Silberman, D. Hoiem, P. Kohli and R. Fergus, Indoor Segmentation and Support Inference from RGBD Images, ECCV, 2012.

Alessio