Masters, K. (Creator), Lintott, C. J. (Creator), Hart, R. E. (Creator), Kruk, S. J. (Creator), Smethurst, R. J. (Creator), Casteels, K. R. V. (Creator), Keel, W. C. (Creator), Simmons, B. D. (Creator), Stanescu, D. O. (Creator), Tate, J. (Creator), Tomi, S. (Creator) (23 Apr 2019). Data availability statement for 'Galaxy Zoo: unwinding the winding problem - observations of spiral bulge prominence and arm pitch angles suggest local spiral galaxies are winding'. Oxford University Press.