How are activities involving toy blocks linked the development of intelligence in children? I'm looking for a peer reviewed article that links the development of intelligence to any form of block building activities.

For example a child playing with wooden blocks can improve their sensory-motor and communication skills while learning to solve problems.

Has anyone got any suggestions?
Found what I consider to be the best reference here

Hirsch, E. S. (1996). The block book (Third ed.). Washington, DC: National Association for the Education of Young Children.

It's certainly going in the thesis after glancing through it.  Thought posting it here might helps others too.