conf/sigmod/79 Arnold L. Rosenberg Lawrence Snyder Compact B-Trees. 43-51 1979 SIGMOD Conference db/conf/sigmod/sigmod79.html#RosenbergS79 SIGMOD79/P043.PDF http://doi.acm.org/10.1145/582095.582102 db/conf/sigmod/RosenbergS79.html journals/acta/BayerM72 journals/tods/BayerU77 books/aw/Knuth73 journals/siamcomp/MillerPRS79 journals/siamcomp/RosenbergS78 conf/focs/Snyder77 journals/acta/Yao78