Wikipedia:Articles for deletion/Planetary mass type
The first reference, which appears to refer to the origin of the classification system, should refer to a primary of secondary source see . This reference does not refer to anything and is therefore an invalid reference. Also your reference suggests that this is original research which is not premitted
— User:Sdp1978, 02:49, 21 April 2007 (UTC)
Stance: comment
Cited policy: WP:OR (Wikipedia:No original research)