1. Grinding of ammonium perchlorate by ball mill;Hagihara;Kogyo Kayaku (Sci. Tech. Energetic Materials),1967
2. Grinding of ammonium perchlorate by vibration ball mill;Hagihara;Kogyo Kayaku (Sci. Tech. Energetic Materials),1982
3. Preparation of ultra fine ammonium perchlorate by freeze–dry method using liquid nitrogen;Hagihara;Kogyo Kayaku (Sci. Tech. Energetic Materials),1989
4. Ultra fine ammonium perchlorate prepared by freeze–dry method;Kohga;Kogyo Kayaku (Sci. Tech. Energetic Materials),1992
5. The preparation of fine porous ammonium perchlorate by the spray-drying method;Kohga;J. Soc. Powder Technol.,1996