TY - BOOK ID - 130347557 TI - Managing systems maintenance PY - 1981 SN - 9780894350467 0894350463 PB - Wellesley: QED information sciences, DB - UniCat KW - Software maintenance UR - https://www.unicat.be/uniCat?func=search&query=sysid:130347557 AB - ER -