LED retrofit. lamp replacement. energy efficiency. energy performance. energy savingsRaditschová, Jana, 1969- Critical analysis of cost benefits of LED retrofits in indoor lighting / aut. Jana Raditschová, Dionýz Gašparovský. -- 8521005. -- 2-s2.0-85057494670. Gašparovský, Dionýz, 1971- In: LUMEN V4. -- 1. vyd.. -- USB kľúč, 278 s.. -- 978-1-5386-7924-1 Lighting conference of the visegrad countries LUMEN V4. -- Ostrava : Czech Lighting Society, 2018. -- USB, S. 163-168.