Randal C. Nelson Hanan Samet A Population Analysis for Hierarchical Data Structures. 270-277 1987 conf/sigmod/87 SIGMOD Conference db/conf/sigmod/sigmod87.html#NelsonS87 SIGMOD87/P270.PDF https://doi.org/10.1145/38713.38744 https://doi.org/10.1145/38714.38744 journals/tods/FaginNPS79 journals/acta/FinkelB74 ... ... ... ... ... ... ... journals/tods/NievergeltHS84 journals/ipl/Orenstein82 journals/bit/Regnier85 journals/csur/Samet84 ... ... ... ... ... ... ... journals/cacm/Tamminen84