00269nam a2200109Ia 4500100003000000654002400030245004700054260002500101082001300126300000800139546001200147  aGervae/Nick/ Clark/Peter   aDeveloping business  aDeveloping  Business  App with  Open  step  bSpringeraNONEc1997  a5.2bGER  a289  aENGLISH