Ugljena kiselina — разлика између измена

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* {{cite journal | author = Hage W., Hallbrucker A., Mayer E. | title = A Polymorph of Carbonic Acid and Its Possible Astrophysical Relevance | journal = J. Chem. Soc. Farad. Trans. | volume = 91 | pages = 2823–2826 | doi = 10.1039/ft9959102823 | year = 1995}}
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== Spoljašnje veze ==
* [http://www.newton.dep.anl.gov/askasci/chem99/chem99661.htm Razlaganje ugljene kiseline]
* [http://www.wiley-vch.de/vch/journals/2002/press/200005press.html Zašto je postojanje ugljene kiseline bilo neopravdano osporavano tako dugo?]