1960, 16(4): 187-188.
DOI: 10.7498/aps.16.187
CSTR: 32037.14.aps.16.187
1960, 16(4): 214-228.
DOI: 10.7498/aps.16.214
CSTR: 32037.14.aps.16.214
1960, 16(4): 241-244.
DOI: 10.7498/aps.16.241
CSTR: 32037.14.aps.16.241


