共 28 条
[1]
3 P INT C FOM ANN, 1968, Patent No. 1090403
[2]
BERGMAN O, 1968, R60 DEP FOR PROD STO
[3]
BERGMAN O, 1966, R53 DEP FOR PROD STO
[5]
GUNDERSEN K, 1962, ACTA HORTI GOTOB, V25, P33
[6]
GUNDERSEN K, 1962, ABSTR GOTHENBURG DIS, V1, P1
[7]
Hyppel A, 1968, STUD FOREST SUECICA, V64, P1
[8]
HYPPEL A, 1969, THESIS ROY COLL FORE
[9]
KLINGSTROM A, 1965, CKE SVENSK BOT TIDSK, V59, P30
[10]
KLINGSTROM ALLAN, 1965, STUD FOREST SUECICA, V26, P1