On November 5, 1976, near Voreppe, Isère, France, a French physicist identified as Dr.

This case matters because it is a documented radar event whose object identity remains unresolved.
Documented
On November 5, 1976, near Voreppe, Isère, France, a French physicist identified as Dr.
Debated
The identity of the object
Debated
The adequacy of the conventional explanation
Unverified
Extraterrestrial origin
Unverified
Any claim stronger than the record supports
Sources are kept in separate layers: official and contemporary material is documented; secondary UFO literature is treated as debated, not as primary evidence.
Documented source.
Secondary / debated material.
Secondary / debated material.