Hickel, E. Das Kaiserliche Gesundheitsamt (Imperial Health Office) and the chemical industry in Germany during the Second Empire: Partners or adversaries? / Erika Hickel. Drugs and narcotics in history.(1996).

Hickel, Erika. "Das Kaiserliche Gesundheitsamt (Imperial Health Office) and the Chemical Industry in Germany During the Second Empire: Partners or Adversaries? / Erika Hickel." Drugs and Narcotics in History.(1996) .

Hickel, Erika. "Das Kaiserliche Gesundheitsamt (Imperial Health Office) and the Chemical Industry in Germany During the Second Empire: Partners or Adversaries? / Erika Hickel." Drugs and Narcotics in History.(1996), .