[1]Fringuelli;Pellegrino;Piermatti;Pizzo[SyntheticCommunications,1994,vol.24,#18,p.2665-2673]
[2]McKillop,Alexander;Kemp,Duncan[Tetrahedron,1989,vol.45,#11,p.3299-3306]
[3]Buu-Hoi;Lecocq[BulletindelaSocieteChimiquedeFrance,1946,p.139,142]
[1]BulletindelaSocieteChimiquedeFrance,1946,p.139,142