Haldor Topsoe (French Wikipedia)

Analysis of information sources in references of the Wikipedia article "Haldor Topsoe" in French language version.

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topsoe.com

(en) Personnel de rédaction, « Topsoe contracts the world's largest ammonia plant », Haldor Topsoe,‎ 25 octobre 2009 (lire en ligne, consulté le 25 octobre 2009)

umicore.com

Umicore : ince 1 December 2017, Umicore has acquired part of the former business of Haldor Topsoe, including the stationary catalysis business, consulté le 1er janvier 2020