共 3 条
[1]
Hilpert R., 1933, FORSCH GEB INGENIEUR, V4, P215, DOI DOI 10.1007/BF02719754
[2]
VANDEPOLL ANJ, 1941, Z TECH PHYSIK, V22, P29
[3]
WOLFHARD HG, 1943, Z TECH PHYS, V24, P206