Pask, D., Quigg, J. & Sims, A. (2009). Coverings of skew products and crossed products by coactions. Australian Mathematical Society Journal, 86 (3), 379-398.
Pask, D., Quigg, J. & Sims, A. (2009). Coverings of skew products and crossed products by coactions. Australian Mathematical Society Journal, 86 (3), 379-398.