TY - BOOK ID - 134620523 TI - Security in ISDN AU - Burr, William E. AU - National Institute of Standards and Technology (U.S.) PY - 1991 PB - Gaithersburg, MD : U.S. Dept. of Commerce, National Institute of Standards and Technology, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:134620523 AB - ER -