report 195/67/29 Dispersion due to initial perturbations, thrust malalignment and uniform horizontal wind for finned rockets / J.P. Roos Mobilisatievoorbereiding van de particuliere industrie / (uit het Deensch) door U.S. Andersen-Høyer report 195/67/73 Dispersion of fin-stabilized rockets due to thrust malalignment in the presence of slow spin / J.P. Roos Artillerie-Inrichtingen "Hembrug"