[1]Coffmanetal.[JournalofPolymerScience,1948,vol.3,p.85,89]
[1]Fabritschnyi;etal.[ZhurnalObshcheiKhimii,1958,vol.28,p.2520,2522;engl.Ausg.2556,2558]
[1]Nessmejanowetal.[CHEMTECH,1957,vol.9,p.139,145][ZhurnalObshcheiKhimii,1957,vol.27,p.2418,2419;engl.Ausg.S.2481,2482]
[1]Patent:US2862940,1953,
[1]Fabritschnyi;etal.[ZhurnalObshcheiKhimii,1958,vol.28,p.2520,2522;engl.Ausg.2556,2558]
[2]Gol'dfarb,Ya.L.etal.[Tetrahedron,1962,vol.18,p.21-36]