^Schmoldt A, Benthe HF, Haberland G (2008). "Unraveling the metabolic transformation of tetrazepam to diazepam with mass spectrometric methods". Analytical and Bioanalytical Chemistry. 392 (7): 1299–1308. doi:10.1007/s00216-008-2447-4. PMID18949465. S2CID10967477.