Kauffman; Litak; Boyko
Journal of Heterocyclic Chemistry, 1995 , vol. 32, # 5 p. 1541 - 1555

Garst, Michael E.; Dolby, Lloyd Jay; Esfandiari, Shervin; MacKenzie, Vivian Rose; Avey JR., Alfred Arthur; Muchmore, David Charles; Cooper, Geoffrey Kenneth; Malone, Thomas C.
Patent: US2005/38076 A1, 2005 ;
Location in patent: Page/Page column 26 ;

Smith,P.A.S.; Hall,J.H.
Journal of the American Chemical Society, 1962 , vol. 84, p. 480 - 485