schriftenreihe der ackermann-gemeinde Osten : Anruf und Aufgabe / Gesamtred.: Horst Glassl ; met bijdr. van Boleslav Sloskans ... [et al.] studies in communist affairs Soviet theater nuclear offensive / prepared for Office of Director of Defense Research and Engineering (net technical assessment) and Defense Nuclear Agency by Joseph D. … Twee sets detectiebuisjes om giftige gassen op te identificeren, Rusland