Zumbrun, Josh. Coronavirus Slump Is Worst Since Great Depression. Will It Be as Painful?. The Wall Street Journal. 10 May 2020 [20 January 2021]. ISSN 0099-9660
The Wall Street Journal. February 18, 1997: A6. 1996: $3.01 billion sales, $339.5 million net profit Country focus: French chemicals: an industry review