RT null T1 Green Public Procurement of Korea A2 Ahn, Joon Sung K1 ecolabelling K1 environmental health K1 sustainable consumption K1 legal aspect K1 green economy K1 public procurement K1 government purchasing YR 2021 FD 2021 LK https://wedocs.unep.org/handle/20.500.11822/37012 UL https://wedocs.unep.org/handle/20.500.11822/37012 DS UN Environment Document Repository RD Sep 20, 2026