Sorting X + Y CACM June, 1975 Harper, L. H. Payne, T. H. Savage, J. E. Straus, E. merge sorting, computational complexity, data modeling, computing models, binary comparisons 5.25 5.31 CA750610 JB January 9, 1978 12:45 PM 2743 5 2743 2743 5 2743 2743 5 2743