Subscribing to individual articles within a publication

Can we filter the articles in the publication (which has few subscribers already) while adding the new subscriber?

look at the last statement ‘Subscribing to individual articles within a publication can get tricky’ in the below article

http://www.sqlservercentral.com/blogs/kendalvandyke/2010/08/31/replication-gotcha-2D00-including-an-article-in-multiple-publications/

Please help me in understanding.