TY - JOUR T1 - An Approximate Analytical Method of Analysis of a Threshold Maintenance Policy for a MultiPhase MultiComponent Model A1 - Anisimov, V.V. A1 - Gurler, U. JA - Cybernetics and Systems Analysis Y1 - 2003 VL - 39 SP - 325 EP - 337 N1 - upd pg/vol 17,12,03 ER -