Bridging the Semantic Gap in 5G: A Hybrid RAG Framework for Dual-Domain Understanding of O-RAN Standards and srsRAN Implementation. - Nurakhov, Yedil; Kassymbek, Nurislam; Marlambekov, Duman; Mukhanbet, Aksultan; Imankulov, Timur (Applied Sciences (2076-3417), 2026)