Eric Lehman Rina Panigrahy 3.5-Way Cuckoo Hashing for the Price of 2-and-a-Bit. 671-681 2009 ESA http://dx.doi.org/10.1007/978-3-642-04128-0_60 conf/esa/2009 db/conf/esa/esa2009.html#LehmanP09