Kjaer et al.
Acta Chemica Scandinavica (1947-1973), 1953 , vol. 7, p. 1370,1373

OLATEC INDUSTRIES LLC; ST. LAURENT, Joseph P.; JONES, Gerald S.; BRESSE, David M.
Patent: US2013/225865 A1, 2013 ;
Location in patent: Paragraph 0056-0058 ;

Bell, Richard; Cottam, Peter D.; Davies, John; Jones, D. Neville
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1981 , # 7 p. 2106 - 2115

Rao, B. Dharma; Sarathi, T.V.N. Partha; Annapurna; Vani
Journal of Sulfur Chemistry, 2011 , vol. 32, # 3 p. 263 - 272