רעפֿעראַט vs. lektsye

I'm wondering about the difference between a "referat" and a "lektsye". A sheynem dank!

Comments

IMHO, the meanings overlap, but along a scale.

a scholarly paper at a conference is a "referat".

a classroom lecture, like a chapter in a textbook, is a "lektsye".

a talk for a general audience is usually a "rede".

but there's lots of grey area between these.