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Letters To The Editor

Reply to Eckardt

References

  • Frey , JW and Corn , M . 1967 . Physical and chemical characteristics of particulates in a diesel exhaust . Amer Industr Hyg Assoc J , 28 : 468 – 478 .
  • Sullivan , RJ . 1969 . Air Pollution Aspects of Nickel and Its Compounds , technical report Bethesda, Md : Litton Systems Inc .
  • Smith , JC and Sullivan , RJ . 1969 . Air Pollution Aspects of Nickel and Its Compounds , technical report Bethesda, Md : Litton Systems Inc . cited by

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