The chemical and pyrometallurgical purification of β rhombohedral boron

Medcalf, 1972, 439 1960 1965 Bower, 1970, Prog. Boron Chem., 2, 239 Naslain, 1972, 439 Naslain, 1977, 139 Newkirk, 1961, 27 Lerner, 1970, U.S. At. Energy Comm., Rep. TID-25 190 Thévenot, 1977, Analusis, 5, 105 Favre, 1971, Natl. Tech. Inf. Serv., Rep. FRNC-TH-131 Nesmeyanov, 1963 Mar, 1976, Sandia Lab. Rep. SAND 76-8503 Viala, 1977, Thesis, 47 Viala, 1972, Analusis, 1, 485 Cueilleron, 1974, 27 Thévenot, 1975, Analusis, 3, 76