共 11 条
[1]
BERNTSSON PB, Patent No. 781105
[2]
BERNTSSON PB, Patent No. 1366241
[4]
CARLSSON A, 1970, NEW ASPECTS STORAGE, P223
[5]
IVERSEN LL, 1975, P S DEPRESSIVE ILLNE, P55
[7]
ROSS S, COMMUNICATION
[10]
VANPRAAG HM, 1975, P S DEPRESSIVE ILLNE, P71