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Berlin: Verl. Tribüne (zu beziehen: Markranstädt: Literatur- u. Vordruckvertrieb d. FDGB), 1967
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Pittsburgh, PA; Spokane, WA: Deptartment of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Office of Mine Safety and Health Research, august 2021