@electronic{www.hpl.hp.com,
   title       = {Zipf, Power-law, Pareto - a ranking tutorial}, 
   url         = {http://www.hpl.hp.com/research/idl/papers/ranking/ranking.html},
   biburl      = {https://puma.uni-kassel.de/url/f86bd2fd7e18cb862c936d4d06396736/stumme},
   keywords    = {free law long pareto power scale tail zipf},
   added-at    = {2008-05-14T11:44:17.000+0200},
   description = {},
   interhash   = {f86bd2fd7e18cb862c936d4d06396736}, 
   intrahash   = {f86bd2fd7e18cb862c936d4d06396736}
}