2026-10-04 Crossref REST API (api.crossref.org), viewed in Chrome

Queries: 1. query.bibliographic=Langmuir paradox revisited 2. query.author=Tonks, until 1970, sorted ascending 3. query.author=Lewi Tonks, from 1929-03 to 1975, sorted ascending (first 30) 4. query.bibliographic=electron scattering plasma oscillations, until 1960 5. query.bibliographic=Gabor Ash Dracott Langmuir's paradox, until 1960 6. query.bibliographic=Penning high frequency oscillations discharge, until 1930 (negative: nothing relevant)

Findings [web] https://api.crossref.org/works?... (DOIs below): Lewi Tonks's own related work (priority 1): - Tonks, Mott-Smith, Langmuir, "Flow of Ions Through a Small Orifice in a Charged Plate", Phys. Rev. 28, 104 (1926) 10.1103/physrev.28.104 - Tonks, "Space Charge as a Cause of Negative Resistance in a Triode and Its Bearing on Short Wave Generation", Phys. Rev. 30, 501 (1927) 10.1103/physrev.30.501 - Tonks and Langmuir, "Oscillations in Ionized Gases", Phys. Rev. 33, 195 (1 Feb 1929) 10.1103/physrev.33.195 (the project document; DOI confirmed) - Tonks and Langmuir, "Note on 'Oscillations in Ionized Gases'", Phys. Rev. 33, 990 (1 June 1929) 10.1103/physrev.33.990 - Tonks and Langmuir, "A General Theory of the Plasma of an Arc", Phys. Rev. 34, 876 (15 Sep 1929) 10.1103/physrev.34.876 - Tonks, "The High Frequency Behavior of a Plasma", Phys. Rev. 37, 1458 (1931) 10.1103/physrev.37.1458 - Tonks, "Plasma-Electron Resonance, Plasma Resonance and Plasma Shape", Phys. Rev. 38, 1219 (1931) 10.1103/physrev.38.1219 - Tonks, "Impedance Characteristics of Loaded Lecher Systems", Physics 2 (1932), GE Schenectady, 10.1063/1.1745024 (the Lecher-wire method used in the 1929 measurements) - Tonks, "Ionisation Density and Critical Frequency", Nature 132, 101 and 132, 710 (1933) 10.1038/132101a0, 10.1038/132710a0 (plasma frequency applied to ionospheric critical frequency) - Tonks, "Electric Discharges in Gases: Ionization and Excitation", Electrical Engineering / Trans. AIEE (Feb 1934) 10.1109/ee.1934.6539937 - Tonks, "The Pressure of Plasma Electrons and the Force on the Cathode of an Arc", Phys. Rev. 46, 278 (1934) Others (priority 2-3): - Merrill and Webb, "Electron Scattering and Plasma Oscillations", Phys. Rev. 55, 1191 (1939) 10.1103/physrev.55.1191 - Linder, E. G., "Effect of Electron Pressure on Plasma Electron Oscillations", Phys. Rev. 49, 753 (1936) 10.1103/physrev.49.753 (a pressure correction to zero group velocity, before Bohm-Gross; bears on claim 2) - Armstrong, E. B., "Plasma-Electron Oscillations", Nature 160, 713 (1947); Neill, T. R., Nature 163, 59 (1949) - Wehner, G., "Electron Plasma Oscillations", J. Appl. Phys. (1951), Wright Field 10.1063/1.1700044 - Hernqvist, K. G. (RCA), "Plasma Ion Oscillations in Electron Beams" and "Plasma Oscillations in Electron Beams", J. Appl. Phys. 26 (1955) 10.1063/1.1722036, 10.1063/1.1722128 (bears on claim 3, ion oscillations) - Emeleus, K. G., "Plasma electron oscillations", Appl. Sci. Res. (1956); Emeleus and Allen, Aust. J. Phys. (1955) 10.1071/ph550305 - Peterson and Puthoff, "A theoretical study of ion plasma oscillations", IRE Trans. Electron Devices (1959) 10.1109/t-ed.1959.14566 - Dawson, "Nonlinear Electron Oscillations in a Cold Plasma", Phys. Rev. 113, 383 (1959) - Gabor, Ash, Dracott, "Langmuir's Paradox", Nature 176, 916 (1955) 10.1038/176916a0 - Martin and Emeléus, "The Langmuir Paradox in Discharge Plasmas", Nature 177, 943 (1956) 10.1038/177943b0 - Ash and Gabor, "Experimental investigations on electron interaction", Proc. R. Soc. A (1955) 10.1098/rspa.1955.0063 (Imperial College) Negative: query 6 (Penning 1926 oscillations) returned nothing relevant. Penning's earlier detection of discharge oscillations is [memory, low-medium]; try Physica / Nature 1926 directly next run.