00302nam a2200109Ia 4500008004100000082001800041100001300059245006300072260001800135300001100153650002800164240817s9999    xx            000 0 und d  a660.299 P44 R  aPetho, A 0aResidence time distribution theory in chemical engineering  c1982b Verleg  a286 p.  a Chemical engineering .