Isdn basic rate interface interoperability with key and hybrid systems. - Albert D. Baker; James Chen; Nancy T. Radics; Lee A. Vallone (AT&T Tech. J., 1995)

LambdaXtreme(reg) transport system: R&D of a high capacity system for low cost, ultra long haul DWDM transport. - Daniel A. Fishman; William A. Thompson; Lee A. Vallone (Bell Labs Tech. J., 2006)