00251nam a2200109Ia 4500008004100000041000800041082002200049100001400071245003900085260000900124300000800133211209s1979    xx            000 0 und d  aeng  a621.402 2 N79 KAY  aKAYS, WON  aCONVECTIVE HEAT AND MASS TRANSFER   c1979  a386