Ramberg, Peter J. (2000). «The Death of Vitalism and the Birth of Organic Chemistry: Wohler's Urea Synthesis and the Disciplinary Identity of Organic Chemistry». Ambix. 47 (3): 170–195. doi:10.1179/amb.2000.47.3.170. PMID11640223.
dx.doi.org
J. J. Berzelius "Lehrbuch der Chemie," 1st ed., Arnoldischen Buchhandlung, Dresden and Leipzig, 1827. 1-148-99953-1. Brief English commentary in English can be found in Bent Soren Jorgensen "More on Berzelius and the vital force" J. Chem. Educ., 1965, vol. 42, p 394. doi:10.1021/ed042p394
Dan Berger, Bluffton College, analysis of varying inappropriate definitions of the inorganic-organic distinction: Otherwise consistent linked material differing from current article in downplaying the carbon present vs carbon absent distinctive: [1]
Ramberg, Peter J. (2000). «The Death of Vitalism and the Birth of Organic Chemistry: Wohler's Urea Synthesis and the Disciplinary Identity of Organic Chemistry». Ambix. 47 (3): 170–195. doi:10.1179/amb.2000.47.3.170. PMID11640223.
web.archive.org
May, Paul. «Urea». Molecules in Motion. Imperial College London. Արխիվացված օրիգինալից 2015 թ․ մարտի 17-ին.
