1961, 17(2): 61-72.
DOI: 10.7498/aps.17.61
CSTR: 32037.14.aps.17.61
1961, 17(2): 73-76.
DOI: 10.7498/aps.17.73
CSTR: 32037.14.aps.17.73
1961, 17(2): 89-98.
DOI: 10.7498/aps.17.89
CSTR: 32037.14.aps.17.89
1961, 17(2): 108-112.
DOI: 10.7498/aps.17.108
CSTR: 32037.14.aps.17.108


