References
Adaro, F., Scheid, P., Teichmann, J., Piiper, J.: Respir. Physiol.18, 43–63 (1973)
Scheid, P., Slama, H., Piiper, J.: J. appl. Physiol.30, 258–260 (1971)
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Slama, H., Scheid, P. Electronic feedback circuit for increasing signal-to-noise ratio in a mass spectrometer. Pneumologie 151, 247–249 (1975). https://doi.org/10.1007/BF02095094
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DOI: https://doi.org/10.1007/BF02095094