There was also a book published a while back by a modeler I knew in my area entitled "Animated Scale Models Handbook" by Adolph F. Frank
It wasn't published by a "model railroad publisher" but if you do a serach you can still find copies available. Adolph was an astounding person. He made incredible animations in N scale that had to be seen to be believed! We'd love to see him show up at local NMRA events because you never know what tiny jewel he was going to bring each time he came. He passed away about 10 years ago, but at least some of his work can be seen in this book.
Jim