共 5 条
[1]
ERDMANN P, 1970, TECH MITT KRUPP FORS, V28, P167
[2]
ERDMANN P, 1968, TECH MITT KRUPP FORS, V26, P11
[3]
ERDMANN P, 1969, TECH MITT KRUPP FORS, V27, P75
[4]
DIN50460
[5]
1975, DIN50460, P3