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APA Citation
Day, A., Fellows, M. R. (. R., Greenberg, N., Khoussainov, B., Melʹnikov, A. V., & Rosamond, F. (Eds.) (2017). Computability and complexity : essays dedicated to Rodney G. Downey on the occasion of his 60th birthday. Cham : Springer. http://access.bl.uk/ark:/81055/vdc_100073628013.0x000001