共 7 条
[1]
KRUG W, 1954, ARBEITSTAGUNG OPTIK, P112
[2]
Krug Wolfgang, 1954, FEINGERATETECHNIK, VIII, P387
[3]
LAU, 1953, FEINGERATETECHNIK, V2, P101
[6]
PHILPOT J S L, 1948, Research, V1, P234
[7]
SVENSSON H, 1949, ACTA CHEM SCAND, V3, P1110