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2. Barbiturate analysis: Method and statistical survey;Bonnichsen;J. Forensic Sci.,1961
3. Arzneimittel und Fahrtüchtigkeit;Bonnichsen;Blutalkohol,1970
4. A report on autopsy cases involving hexapropymate;Bonnichsen;Zacchia,1974
5. Colorimetric determination of meprobamate in blood;Madsen;Clin. Chim. Actas,1962