[1]Hovorka;Scigel;Gunterova;Tichy;Zavada[Tetrahedron,1992,vol.48,#43,p.9503-9516]
[2]Hovorka,Martin;Guenterova,Jana;Zavada,Jiri[TetrahedronLetters,1990,vol.31,#3,p.413-416]
[1]Tetrahedron,1992,vol.48,p.9503-9516
[2]TetrahedronLetters,1990,vol.31,p.413-416