, Kosower, Edward M. (4th ed.). New York: Macmillan. pp. 250. ISBN 978-0024181701. OCLC 24501305. Veillard, A. (1970). "Relaxation during internal rotation...
Introduction to Organic Chemistry (4th ed.). Macmillan. p. 1169. ISBN 978-0024181701. Shieh, W. C.; Dell, S.; Repic, O. (2001). "1,8-Diazabicyclo[5.4.0]undec-7-ene...
, Kosower, Edward M. (4th ed.). New York: Macmillan. pp. 250. ISBN 978-0024181701. OCLC 24501305. Atkins, Peter; de Paula, Julio (2002). Physical Chemistry...