Petrow; Neimyschewa Zhurnal Obshchei Khimii, 1959 , vol. 29, p. 3026,3029; engl.Ausg.S. 2991, 2993 Full Text Show Details Borecka et al. Roczniki Chemii, 1958 , vol. 32, p. 1301,1307 Chem.Abstr., 1959 , p. 17884 Full Text Show Details Michalski; Lenard Roczniki Chemii, 1956 , vol. 30, p. 655 Chem.Abstr., 1957 , p. 2535 Full Text Show Details Michalski et al. Bulletin de l'Academie Polonaise des Sciences, Serie des Sciences Chimiques, 1958 , vol. 6, p. 159