00538nam a2200169 a 450000500170000000800410001702000180005804100080007608200110008410000150009524501020011026400400021230000240025265000300027665000280030665000340033420260717093421.0260717s2011    ii            000 0 eng d  a9780670921607  aeng04a658.111 aRies, Eric14aThe lean startup :bhow constant innovation creates radically successful businesses /cRies, Eric 1aLondon :bPortfolio Penguin,c2011.  axi, 320 p. ; 23 cm. 4aNew business enterprises. 4aConsumers' preferences. 4aOrganizational effectiveness.