User blog comment:Qunow/Regular info update/@comment-23772290-20140123152345/@comment-26391060-20140126161824

I believe these are official publication (although they might not be canon), similar to http://www.amazon.co.jp/ソードアート・オンライン-コミックアンソロジー-電撃コミックスEX-ぷよ/dp/4048915746/ref=sr_1_1?ie=UTF8&qid=1390753044&sr=8-1