SDF blending operators research paper list

I'd like to maintain a list of Research paper about SDFs blending.

• A Gradient-Based Implicit Blend [  paper ] [  Vimeo ] Olivier Gourmel, Loic Barthe, Marie-Paule Cani, Brian Wyvill, Adrien Bernhardt, Mathias Paulin, Herbert Grasberger
• Sketch-Based Implicit Blending [  paper ] [  Yt ]
  Baptiste Angles, Marco Tarini, Brian Wyvill, Loic Barthe, Andrea Tagliasacchi

At once it struck me what quality went to form a man of achievement,
especially in literature, and which Shakespeare possessed so enormously
-- I mean negative capability, that is, when a man is capable of being
in uncertainties, mysteries, doubts, without any irritable reaching
after fact and reason.
-- John Keats