共 11 条
[1]
[Anonymous], 1970, OFFICIAL METHODS ANA
[2]
BIENFET V, 1970, 1ST P INT S TRAC EL, P474
[4]
HARTMANS J, 1970, 1ST P INT S TRAC EL, P362
[5]
HOFFMAN I, 1968, J ASSOC OFF ANA CHEM, V51, P1039
[6]
HOWELL JMC, 1970, 1ST P INT S TRAC EL, P106
[7]
MORRISON FB, 1959, FEEDS FEEDING
[9]
TILLEY J. M. A., 1963, JOUR BRIT GRASSLAND SOC, V18, P104
[10]
UNDERWOOD EJ, 1971, TRACE ELEMENTS HUMAN, P75