1.
J Assoc Off Anal Chem
; 56(2): 322-7, 1973 Mar.
Article
in English
| MEDLINE
| ID: mdl-4775505
2.
J Assoc Off Anal Chem
; 55(2): 315-27, 1972 Mar.
Article
in English
| MEDLINE
| ID: mdl-4666191