Alex appeared in numerous short stories in the Star Wars Adventure Journal:
“A Glimmer of Hope”
“Whispers in the Dark”
“Mission to Zila”
“Shadows of Darkness”
“Rendezvous with Destiny”
“Betrayal by Knight”
“Shades of Gray”
Alex is also referenced in the short story “Passages” and has a small role in “Turning Point”. She also is mentioned in Timothy Zahn’s Vision of the Future.
Daniel Wallace included a bit of info about Alex in his New Essential Guide to Characters.
Starwars.com/Hyperspace posted “A Glimmer of Hope” online in March 2004. As of Dec. 2009, all the Alex stories are available on Hyperspace.