RT Journal Article SR Electronic T1 Editorial: Why Look into Media Planning? JF Journal of Advertising Research JO J Advert Res FD WARC SP 1 OP 1 DO 10.1017/S0021849905050166 VO 45 IS 1 A1 Joseph T. Plummer YR 2005 UL http://www.journalofadvertisingresearch.com/content/45/1/1.abstract AB Editorial of JAR 45,1 (2005), discussing and introducing the issue's theme of media planning.