1. Liquid filling of hard gelatin capsules: a new technology for alternative formulations;Bowtle;Pharm. Technol. Eur.,1998
2. The filling of liquids into hard gelatin capsules;Broer;Verpackungs-Rundschau,1978
3. Liquid filled and sealed hard gelatin capsules;Cadé;Acta Pharm. Technol.,1987
4. Liquid filling in hard gelatin capsules — preliminary steps;Cadé;Bull. Tech. Gattefossé,1996
5. Liquid-filled hard gelatin capsules;Cole;Pharm. Technol. Int.,1989