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1) 31P NMR Spectroscopy in Wood Chemistry. I. Model Compounds
http://www.tandfonline.com/doi/abs/10.1080/02773819108050267

2) Zur Kenntnis der o-Chinone, XXIII. Darstellung und Eigenschaften einiger Diphenyl-di-o-chinone
http://onlinelibrary.wiley.com/doi/10.1002/cber.19630960614/abstract?systemMessage=Wiley+Online+Library+will+be+unavailable+on+Saturday+7th+Oct+from+03.00+EDT+%2F+08%3A00+BST+%2F+12%3A30+IST+%2F+15.00+SGT+to+08.00+EDT+%2F+13.00+BST+%2F+17%3A30+IST+%2F+20.00+SGT+and+Sunday+8th+Oct+from+03.00+EDT+%2F+08%3A00+BST+%2F+12%3A30+IST+%2F+15.00+SGT+to+06.00+EDT+%2F+11.00+BST+%2F+15%3A30+IST+%2F+18.00+SGT+for+essential+maintenance.+Apologies+for+the+inconvenience+caused+
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