Hiya everyone.

Hope you can help me with this odd question.

I've seen a few references online that state that the Wonder Twins appeared in some issues of Teen Titans.  I'm pretty familiar with the original run of The New Teen Titans, and I don't ever recall Zan & Jayna appearing anywhere other than Super Friends, Extreme Justice, and Young Justice.

Are the comments I'm seeing online correct?  If so,  where did they appear?