TY CONF TI Primordial intermediate-mass binary black holes in space laser interferometers KW black hole physics KW relativistic processes KW gravitational waves; cosmology: dark matter KW early universe KW primordial nucleosynthesis KW observations; instrumentation: detectors JO Modern astronomy: from the Early Universe to exoplanets and black holes AU Mitichkin, N.. AU Postnov, K.. AU Chekh, I.. PY 2024 PB Special Astrophysical Observatory of the Russian Academy of Sciences