TY - CONF AU - Vladimir Dimitrov BT - Thirty Eighth Spring Conference of the Union of Bulgarian Mathematicians CY - Borovetz DA - April 1 5, 2009 LA - eng PP - Borovetz PY - 2009 T2 - Thirty Eighth Spring Conference of the Union of Bulgarian Mathematicians TI - Conversion of Process Flow Diagrams to Activity Diagrams ER -