TY  - RPRT
TI  - Gravitational valves: relevant differences with different technical solutions to counteract hydrostatic pressure.
AU  - M Kiefer
AU  - U Meier
AU  - R Eymann
PY  - 2006
DO  - 10.1007/3-211-30714-1_71
UR  - https://pubmed.ncbi.nlm.nih.gov/16671482/
ID  - 16671482
ER  -