<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Denning, Peter J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">ACM president's letter: performance analysis: experimental computer science as its best</style></title><secondary-title><style face="normal" font="default" size="100%">Commun. ACM</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1981</style></year><pub-dates><date><style  face="normal" font="default" size="100%">November</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://doi.acm.org/10.1145/358790.358791</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">ACM</style></publisher><pub-location><style face="normal" font="default" size="100%">New York, NY, USA</style></pub-location><volume><style face="normal" font="default" size="100%">24</style></volume><pages><style face="normal" font="default" size="100%">725–727</style></pages></record></records></xml>