Klaus Brengel Andreas Crauser Paolo Ferragina Ulrich Meyer An Experimental Study of Priority Queues in External Memory. 346-360 http://link.springer.de/link/service/series/0558/bibs/1668/16680345.htm 1999 conf/wae/1999 Algorithm Engineering db/conf/wae/wae1999.html#BrengelCFM99