Cetena (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Cetena" in Portuguese language version.

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1britannica.com

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britannica.com

Encyclopædia Britannica Article - Ketene (em inglês)

doi.org

dx.doi.org

Hermann Staudinger (1905). «Ketene, eine neue Körperklasse». Berichte der deutschen chemischen Gesellschaft. 38 (2): 1735-1739. doi:10.1002/cber.19050380283 (em alemão)

mit.edu

web.mit.edu

Synthesis of Four-Membered Rings via Ketene (2+2) Cycloadditions - web.mit.edu

orgsyn.org

C. D. Hurd (1941). «Ketene». Org. Synth. ; Coll. Vol., 1

rsc.org

Ketene–acetylene [2 + 2] cycloadditions: cyclobutenone and/or oxete formation? ;Rainer Koch and Curt Wentrup; Org. Biomol. Chem., 2004, 2, 195 - 199, DOI: 10.1039/b309549e