Brown, Thomas C.,Gillilan, David M.
Meinel, Christoph; Verlag fur Geschichte der Naturwissenschaften und der Technik
Bowden, Roger J.,Turkington, Darrell A.
Mitchell, J. Allan
Jalas, A. & Laakso, M; Gardiner, Andrew (trans)
Lawrence Berkeley Laboratory Environmental Instrumentation Survey
Beauchamp, Michael K.
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