1. Industrial Organic Chemistry;Weissermel,2003
2. Amine basicities in benzene and in water
3. F.P. Abbott, N.A. Meinhardt, R. Widmer, Fr. Demande 2,275,485, 1976.
4. F.P. Abbott, U.S. Patent No. 3,989,476, 1976.
5. N.A. Meinhardt, R. Widmer, U.S. Patent No. 4,042,513, 1977.