00310nam a2200097Ia 4500008004100000040001100041245008400052260005500136300001200191300000900203251112s9999||||xx |||||||||||||| ||und||  aCNCLSA 0aProceedings Of The National Academy Of Sciences Of The United States Of America  cJanuar, 1982bNational Academy Of ScienceaU. S. A  aP.1-952  bV.79