Nándor Bokor, associate professor at the BME Institute of Physics, discusses foundations and applications of general relativity in an interview published at index.hu.

The interview in Hungarian: https://index.hu/tudomany/2025/01/04/bokor-nandor-relativitas-elmelet-bm...

Spacetime-geometry, a popular book (in Hungarian) by Nándor Bokor: https://www.typotex.hu/book/13506/bokor_nandor_terido-geometria