1. The chemistry of the constituents of toad venoms;Deulofeu;Fortschr. Chem. Org. Naturst.,1948
2. Identification and quantification of neutral fecal steroids by gas-liquid chromatography and mass spectrometry : studies of human excretion during two dietary regimens;Eneroth;J. Lipid Res.,1964
3. Ueber die chemische Zusammensetzung des Parotissekretes von Bufo melanostictus;van Gils;Acta Brevia Neerl. Physiol. Pharmacol. Microbiol.,1938
4. Over de chemische samenstelling van het parotissekreet van Bufo melanostictus;van Gils;Geneeskd. Tijdschr. Ned. Indië,1938
5. Ueber neue Bufadienolide aus Ch'an Su;Höriger;Helv. Chim. Acta,1969