Filtro de cigarro (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Filtro de cigarro" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

2^nd place

4^th place

doi.org

Francois de Dardel; Thomas V. Arden (2007), «Ion Exchangers», Ullmann's Encyclopedia of Industrial Chemistry 7th ed. , Wiley, pp. 1–74, doi:10.1002/14356007.a14_393
Seymour S. Chissick (2007), «Asbestos», Ullmann's Encyclopedia of Industrial Chemistry 7th ed. , Wiley, pp. 1–18, doi:10.1002/14356007.a03_151
T. C. Tso (2007), «Tobacco», Ullmann's Encyclopedia of Industrial Chemistry 7th ed. , Wiley, pp. 1–26, doi:10.1002/14356007.a27_123