Schmidhuber's critique contains over 200 references http://people.idsia.ch/~juergen/critique-turing-award-bengio-hinton-lecun.html. I have spent more than five hours on verifying them. Now I am kind of an expert on this. It helped that I already knew several of his papers and earlier posts i.e. "Deep Learning: Our Miraculous Year 1990-1991" http://people.idsia.ch/~juergen/deep-learning-miraculous-year-1990-1991.html and "Critique of Honda Prize for Dr. Hinton" http://people.idsia.ch/~juergen/critique-honda-prize-hinton.html
I checked about 95% of Schmidhuber's points of criticism, especially the important ones in Sec. I, II, XIV, XVII, XVIII, XII, XIX, XXI, XVI. They seem fully justified.
Have a look at the astonishing Sec. XVII which lists eight of his direct priority disputes with Bengio and Hinton. And his advice for PhD students in the conclusion.
This is not a glorious chapter in the annals of the Turing award.