Voir la notice de l'article provenant de la source Biblioteca Digitale Italiana di Matematica
[1] , Congress in Rome, 1931, p. 121; Solvay Congress 1933, p. 216. , «Zs. f. Phys.», 101, 533 (1936); 110, 251 (1938); 113, 61 (1939); «Ann. d. Phys.», 32, 20 (1938). , «Zs. f. Phys.», 66, 650 (1930); 88, 92 (1934); «Nature», 142, 393 (1938); «Comptes Rendues», 207, 358-421 (1938); «Phys. Rev.», 56, 1245 (1939).
[2] , and , «Phys. Rev.», 57, 61, January 1th (1940); 57, 339 (1940); 59, 902 (1941); «Ann. Ac. Bras. Ciências», T. XII, Setembro 1940. Other experiments on associated penetrating particles were made independently by , and , «Phys. Rev.», 57, 335 (1940); and , «Nature», 145, 511 (1940). Note added during the revision of proofs.: Later L. JÁNOSSY has studied these showers with a different technique («Proc. Roy. Soc. A.» 179, 361 (1942); and , «Nature», 150, 633 (1942)). Also {author_10} and {author_11} have observed associated penetrating particles in the extensive showers, «C.R.», 212, 24 (1941); «Phys. Rev.», 61, 549 (1942).
[3] «Phys. Rev.», 57, 61 (1940); and and , «Phys. Rev.», 61, 549 (1942).