https://norm.gekko.de/gbbstat_ndv2026-05-24T07:27:52+00:001.0 https://norm.gekko.de/gbbstat_ndv/eingangsformel0.8 https://norm.gekko.de/gbbstat_ndv/10.8 https://norm.gekko.de/gbbstat_ndv/20.8 https://norm.gekko.de/gbbstat_ndv/32026-06-10T02:19:59+00:000.8 https://norm.gekko.de/gbbstat_ndv/42026-06-08T22:46:49+00:000.8 https://norm.gekko.de/gbbstat_ndv/anlage0.6