Weimer, P.K., Kurbatov, J.D., and Pool, M.L.: Radioactive Argon A37, Phys. Rev. 60: 469, 1941.
2.
Pool, M.L.: Radioactive X-ray Emitters, Helvet. Physica Acta23: 178, 1949.
3.
Wuehrmann, A.H. , and Curby, W.A.: An Intra-oral Method for Determining the Radiopacity of Oral Structures, J. D. Res. 30: 473, 1951 (Abst.).
4.
Wuehrmann, A.H. , and Monacelli, C.J.: Selection of Optimal Kilovoltage for Dental Radiography-Preliminary Studies, Radiology57: 240, 1951.
5.
Tuddenham, W.J. , Gibbons, J.F., Hale, J., and Pendergrass , E.P.: Supervoltage and Multiple Simultaneous Roentgenography: New Technics for Roentgen Examination of Chest, Radiology63: 184, 1954.
6.
Spangenberg, H.D., Jr.: Production of Roentgenograms by Means of X-ray Radiation From Artificial Radioactive Isotopes: Preliminary Report of an Experimental Study, Engineering Experiment Station News, Ohio State University20: 48, 1948.
7.
Spangenberg, H.D., Jr., and Pool , M.L.: Production of Roentgenograms by X-ray Radiations Obtained From Radioactive X-ray Emitters, J. A. D. A. 47: 624, 1953.
8.
Mayneord, W.V. : Radiography of Human Body With Radioactive Isotopes, Lancet1: 276, 1952.
9.
Untermyer, S. : Portable Thulium X-ray Unit, Nucleonics12: 35, 1954.
10.
Hasterlik, R.J.: III. Clinical Radiography With a Tm170 Source, Nucleonics12: 37, 1954.
11.
Carpenter, A.W., Heer, R.R., Jr., Krohn, L.H., Coleman, E.W., and Boyer, F.J.: Preliminary Report on a Complete Portable Field X-ray Unit, Army Medical Research Lab. Rep.168, November, 1954.
12.
Burke, D.E. : Isotope Radiographs for Localization of Renal Calculi During Surgery: A New Truly Portable Radiographic Unit Using a Radioisotope (Thulium170) as an Energy Source, J. Urology76: 508, 1956.
13.
West, R.: Low Energy Gamma-ray Sources, Nucleonics12: 35, 1953.
14.
Kereiakes, J.G., and Krebs, A.T.: X-radiography With Beta-Emiting Isotopes , Army Medical Research Lab. Rep., 173, December, 1954.
15.
Idem: Technical Radiography With Beta-Emitting Isotopes, Army Medical Research Lab. Rep.180, March, 1955.
16.
Dennis, G.E. , and DeLuca, H.A.: Use of Radioactive Isotopes for Diagnostic Radiology, Am. J. Roentgenol. 72: 661, 1954.
17.
Clarke, L.T. : Investigation of Isotopes for Aircraft Radiography , Wright Air Development Center Tech. Rep., 56-440, April, 1957.