The Berlin Group and the Society for Scientific Philosophy
N. Milkov, in: T. Uebel (Ed.), The Routledge Handbook of Logical Empiricism, 1st ed., Routledge, London, 2021, pp. 118–126.

Kurt Grelling and the Idiosyncrasy of the Berlin Logical Empiricism
N. Milkov, in: S. Lutz, Adam Tamas Tuboly (Eds.), Logical Empiricism and the Physical Science, 1st ed., Routledge, London, 2021, pp. 64–83.