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J Chromatogr
; 118(2): 276-9, 1976 Mar 17.
Article
in German
| MEDLINE
| ID: mdl-1254666
2.
Cesk Farm
; 24(10): 433-6, 1975 Dec.
Article
in Czech
| MEDLINE
| ID: mdl-1220875
3.
J Chromatogr
; 91: 441-50, 1974 Apr 24.
Article
in German
| MEDLINE
| ID: mdl-4364090