bibliography [llks lawlerj lenstraa rinnooy kanand shmoyseditors the traveling salesman problema guided tour of combinatorial optimization john wiley sonsnew york [man udi manber introduction to algorithmsa creative approach addision-wesleyreadingma [pol george polya how to solve it princeton university pressprincetonnjsecond edition [pug pugh skip listsa probabilistic alternative to balanced trees communications of the acm ( ): - june [raw gregory rawlins compared to whatan introduction to the analysis of algorithms computer science pressnew york [rie arthur riel object-oriented design heuristics addison-wesleyreadingma [rob fred roberts applied combinatorics prentice hallupper saddle rivernj [rob eric roberts thinking recursively john wiley sonsnew york [rw chris ruemmler and john wilkes an introduction to disk drive modeling ieee computer ( ): - march [sal betty salzberg file structuresan analytic approach prentice hallupper saddle rivernj [sam hanan samet foundations of multidimensional and metric data structures morgan kaufmannsan franciscoca [sb clifford shaffer and patrick brown paging scheme for pointer-based quadtrees in abel and - ooieditorsadvances in spatial databasespages - springer verlagberlinjune [sed robert sedgewick quicksort garland publishinginc new york [sed robert sedgewick algorithms addison-wesleyreadingmathird edition [sel kevin self technically speaking ieee spectrum ( ): february [sh clifford shaffer and gregory herb real-time robot arm collision avoidance system ieee transactions on robotics ( ): - [sjh clifford shafferramana juvvadiand lenwood heath generalized comparison of quadtree and bintree storage requirements image and vision computing ( ): - september