– Tim Printy at Internet Archive*Skeptic Report*Triangles over Belgium (Wim Van Utrecht)* "Classic" UFO Photo from Belgian Wave - the Hoaxer Confesses*Belgian UFO wave at Latest UFO sightings* David Marler's UFO book, Belleville News Democrat 7/14/13
— Tim Printy at Internet Archive* Skeptic Report* Triangles over Belgium (Wim Van Utrecht)* «Classic» UFO Photo from Belgian Wave — the Hoaxer Confesses