Connectionists: Who introduced the term "Deep Learning" to NNs?

[Schmidhuber Juergen]

Dear connectionists,

to my knowledge, the ancient term "Deep Learning" was introduced to the NN field by Aizenberg & Aizenberg & Vandewalle's book (2000): "Multi-Valued and Universal Binary Neurons: Theory, Learning and Applications.” 

Is anyone aware of older NN papers using it?

(Of course, the field itself is much older - Ivakhnenko started his work on deep learning networks in the mid 1960s.)

Thanks!

Juergen

http://people.idsia.ch/~juergen/whatsnew.html