ClarkG. L.: Applied X-Rays. Mc Graw-Hill, New York (1940).
5.
ClarkG. L., In Colloid ChemistryVol. 5. Edited by AlexanderJ., Reinhold Publ. Co., New York (1944). In this book references to earlier papers by Clark and cowokers are found. Radiology49, 483 (1947).
6.
CrowtherJ. A.: Handbook of Industrial Radiology.
7.
DauvillierA.: C. R. Ac. Sc. Paris190, 1287 (1930).
8.
DershemE.: J. Opt. Soc. Amer.29, 41 (1939).
9.
EngströmA.: Acta Radiol.Suppl. LXIII (1946).
10.
EngströmA., Transactions of Instruments and Measurements Conference, Stockholm (1947).
11.
EngströmA., Rev. Sci. Instr.18, 681 (1947).
12.
EngströmA.JakusM. A.: Nature161, 168 (1948).
13.
EngströmA.LindströmB.: Experientia3, 191 (1947).
14.
EngströmA., ExperientiaVol. III, 10 (1947).
15.
EngströmA., Nature163, 563 (1949).
16.
EngströmA.LüthyH.: Experientia. In press1949.
17.
GobyP.: C. R. Ac. Sc. Paris156, 686 (1913).
18.
GrossS. T.ClarkG. L.: Iron Age152, 44 (1943) and earlier papera. Quoted from Maddigan (1946).
19.
HamosL.EngströmA.: Acta Radiol.25, 325 (1944).
20.
HaycockNeville: Quoted from Maddigan (1946). Trans. Chem. Soc.73, 714 (1898).
21.
JönssonE.: Absorptionsmessungen im langwelligen Röntgengebiet und Gesetze der Absorption. Diss. Uppsala1928.
22.
LamarqueP.: C. R. Ac. Sc. Paris202, 684 (1936).
23.
LamarqueP., J. Radiol et Electr.20, 325 (1936).
24.
LamarqueP., Presse Médicale44, 478 (1936).
25.
LamarqueP., Bull. Hist. Appl.14, 1 (1937).
26.
LamarqueP., J. Belge Radiol.27, 109 (1938).
27.
LamarqueP., For further references see Turchini (1942).
28.
LambotH. J.: Nature159, 676 (1947).
29.
MaddiganS. E.: Industr. Radiography4, Nr 4 (1946).
30.
SeemanH. E.: J. Appl. Physics20, 231 (1949).
31.
SherwoodH. F.: Rev. Sci. Instr.18, 80 (1947).
32.
SiegbahnM.: Spektroskopie der Röntgenstrahlen. J. Springer Verlag, Berlin1931.
33.
SievertR.: Acta Radiol.17, 299 (1936).
34.
SproullW. T.: X-Rays in Practice. McGraw-Hill, New York1946.
35.
TrillatJ.: Applied Physics19, 844 (1948), Where also references to earlier papers by T. are found.
36.
TruetaJ.: Studies of the renal circulation, Oxford1947.
37.
TurchiniJ.: Schweiz. Zeitschr. Path. u. Bakt.5, 10 (1942), where a complete list of references to papers published by Lamarque and Turchini are found.
38.
WoodsR. C.CetroneV. C.: Metal and Alloys18, 1320 (1943).
39.
Zworykin. Electron Optics and the Electron Microscope. J. Wiley and Sons N. Y.1945.