Cubic interactions of d4 irreducible massless higher spin fields within BRST approach I. L. Buchbinder, V. A. Krykhtin and T. V. Snegirev Eur. Phys. J. C, 82 11 (2022) 1007 Published online: 09 November 2022 DOI: 10.1140/epjc/s10052-022-10981-y