 At the same time, Dynamit Nobel took an increasing position in the mines market.Since 1958, around 3 million antitank mines, models DM-11 were manufactured in Liebenau under licence of the Swedish company LIAB.Moreover, in collaboration with Bölkow and Dornier, Dynamit Nobel participated to the research projects of the Ministry of nuclear energy (today known as the Federal Ministry of education and research) for the possible supply of Germany with missiles.