RT null T1 The Global Manual on Economy Wide-Material Flow Accounts (EW-MFA) A2 Groll, Sophia K1 material flow YR 2023 FD 2023-03 LK https://wedocs.unep.org/handle/20.500.11822/42332 UL https://wedocs.unep.org/handle/20.500.11822/42332 DS UN Environment Document Repository RD Sep 20, 2026