TY JOUR TI FINDING ACCEPTABLE SOLUTIONS OF CONVEYOR SYSTEMS PROBLEM FOR FOUR AND MORE OPERATIONS APPLYING DIRECTIONAL SEARCH METHOD KW ordering problems KW directional search methods KW problem of conveyor processing KW Bellman-Johnson’s problem for conveyor systems KW optimal solution KW linear combinatorics KW scheduling theory JO Vestnik of Astrakhan State Technical University. Series: Economics AU Kolobkova, I.. AU Yanchenko, A.. PY 2017 IS PB Astrakhan State Technical University