Five years activity in determining trace elements for the certification of standard reference materials by neutron activation analysis
1989 ◽
Vol 132
(2)
◽
pp. 329-337
◽
1986 ◽
Vol 99
(2)
◽
pp. 325-330
◽
1995 ◽
Vol 198
(2)
◽
pp. 343-348
◽
1987 ◽
Vol 113
(1)
◽
pp. 285-298
◽
1991 ◽
Vol 15
(1)
◽
pp. 111-116
◽