1. THIBAUD, J., CARTAN, L. & COMPARAT, P., Techniques in nuclear physics. (P.20, Measurements of magnetic fields applicable to mass spectrometer). Gauthier-Villars, Paris, 1938.
2. A new mass spectrometer with improved focusing properties. (Use of crossed electric and magnetic fields; focusing shown to depend only on the e/m of the ion selected);BLEAKNEY;Phys. Rev.,1938
3. A mass spectrograph of high intensity and the separation of the rubidium isotopes. (Isotopes collected in a carbon cylinder which is then used as the hollow cathode of a discharge tube);WALCHER;Z. Phys.,1938
4. Increasing the resolving power of a mass spectrograph. (A small radial field is placed before the main field);HERZOG;Phys. Z.,1938
5. General Theory of double-focusing mass spectrographs. (Form of the image curve is derived and discussed in detail in relation to the pole-shoe curve);HERZOG;Ann. der Physik,1938