[The protein requirements of the undeclared worker; Performance measurements on work groups] [0.03%]
隐性失业工人的蛋白质需求量;工作小组的工作成绩考核标准
G LEHMANN,H F MICHAELIS
G LEHMANN
[The protein requirements of the undeclared worker; Performance measurements on work groups] [0.03%]
隐性劳工的蛋白质需求;工作小组的工作绩效测量
H KRAUT,G LEHMANN
H KRAUT
J MAY
J MAY
A GOEBEL,H SECKFORT
A GOEBEL
A GOEBEL
A GOEBEL
[Comparative studies on the determination of vitamin C in plant material] [0.03%]
[植物材料中维生素C测定方法的比较研究]
W K SCHWARZE,E GUNTHER
W K SCHWARZE