QUERY> Scholarly writings on labyrinths?

Dear Colleagues,

Does anyone know of any scholarly writings that explore any aspect of Buddhist history, art, practice, etc. and the practice of walking labyrinths? One can google and find a lot of hits on contemporary spaces that are set up as a convergence of Buddhist-inspired mindfulness and labyrinth walking, but I am wondering if there are any historical materials that point toward something like labyrinth-like walking or labyrinth-like design associated with Buddhist institutions or practice? I will happily accept replies off-list.

Thank you,

Joy Brennan (brennanj@kenyon.edu)

Kenyon College