Loncor Resources Completes the First Phase of IP Surveys at its Nagasa Prospect and Defines Priority Drill Targets TORONTO, ONTARIO--(Marketwired - April 23, 2013) - Loncor Resources Inc. (the "Company" or "Loncor") (TSX VENTURE:LN)(NYSE MKT:LON)(NYSE Amex:LON) is pleased to announce the results of...