Brommer, Karl; Needels, M.; Larson, B.; Joannopoulos, J. (1992). "Ab initio theory of the Si(111)-(7×7) surface reconstruction: A challenge for massively parallel computation". Phys. Rev. Lett. 68 (9): 1355–1359. Bibcode:1992PhRvL..68.1355B. doi:10.1103/PhysRevLett.68.1355. PMID10046145.
Brommer, Karl; Needels, M.; Larson, B.; Joannopoulos, J. (1992). "Ab initio theory of the Si(111)-(7×7) surface reconstruction: A challenge for massively parallel computation". Phys. Rev. Lett. 68 (9): 1355–1359. Bibcode:1992PhRvL..68.1355B. doi:10.1103/PhysRevLett.68.1355. PMID10046145.
Brommer, Karl; Needels, M.; Larson, B.; Joannopoulos, J. (1992). "Ab initio theory of the Si(111)-(7×7) surface reconstruction: A challenge for massively parallel computation". Phys. Rev. Lett. 68 (9): 1355–1359. Bibcode:1992PhRvL..68.1355B. doi:10.1103/PhysRevLett.68.1355. PMID10046145.