Managing optical networks. - Harvey Epstein; Steve Corum; Harald Graber; Patrice N. Lamy (Bell Labs Tech. J., 2001)

Multi-service switches and the Service IntelligentTM optical architecture for SONET/SDH metro networks. - Harald Graber; Humberto J. La Roche (Bell Labs Tech. J., 2003)

Optical/packet transport convergence. - Harald Graber; Enrique J. Hernandez-Valencia; Bernd Heinmueller (Bell Labs Tech. J., 2006)