00318nam a2200097Ia 4500008004100000040001100041245008400052260006000136300001300196300001100209251112s9999||||xx |||||||||||||| ||und||  aCNCLSA 0aProceedings of the National Academy Of Sciences of the United States of America  c1985bElsevier Scientific Publishing CompanyaAmsterdam  aP. 1-508  bV. 157