Materials, process and manufacturing considerations for lipid-based hard-capsule formats, Bowtle, W., Informa Healthcare, New York, 2007, Ed. D Hauss. ‘Lipid-based formulations for oral drug delivery’, 79-106.

Design and Validation of a Pharmaceutical Manufacturing and Development Facility, Darling, J. and Bowtle, W., Pharm. Manuf. Pack. Source, 2005 (3), 118-121.

Early experience of the ‘CT Directive’ in a contract-manufacturing company, Bowtle, W., Pharm. Manuf. Pack. Source, 2004 (2), 97-100.

A contract manufacturer’s perspective on Directive 2001/20/EC (‘The CT Directive’), Bowtle, W., Contract Services Europe, March 2004, 26-30.

Advances in Liquid-Fill Capsule Technology, Bowtle, W., Business Briefing: Pharmatech, 2003, 1-4.

Options in materials for liquid-filled capsules, Bowtle, W. Pharm. Manuf. Pack. Source, 2002 (2), 78-81.

Lipid formulations for oral drug delivery, Bowtle W., Pharmaceutical Technology Europe, 2000, 12, 20-28.

‘Modelling of oxidation profiles of a food-supplement oil in two-piece hydroxy propyl methylcellulose capsules, Bowtle W. and Young V., International Pharmaceutical Technology Conference, Italy, 2000.

Instrumentation of a capsule filling machine for liquid-fill hard gelatin capsules, Saaed T. et al., Proc. Pharm.Tech Conf., 1999, 18, (1), 85-96.

Suitability of two-piece HPMC capsules for oxidation-sensitive liquids, Young V. and Bowtle W., AAPSPharmSci, 1999, 2310.

Recent developments for oral multiphase and targeted release, Bowtle W., Pharmaceutical Technology Europe, 1999, 11, 32-36.

Liquid filling of hard gelatine capsules: a new technology for alternative formulations, Bowtle W., Pharmaceutical Technology Europe: 1998, 10, 84-90.

Formulation strategies designed to maintain the biphasic release characteristics of liquid-filled capsules, Burns , S.J. et al., Int. J. Pharm, 1996, 141, 9-16.

Liquid-filled hard gelatin capsules, Bowtle W., Pharm. Manuf. Rev., 1991, 3, (3), 14-15.

SSM formulations and capsules: an improved way to handle cytotoxic compounds, Bowtle, W. et al. Pharm Res., 1989, PT 612.

Bench-scale systems for capsule development, Bowtle W., Manuf. Chem., 1988, 65-66.

A new approach to vancomycin formulation using filling technology for semi-solid matrix capsules, Bowtle W., Barker N. and Wodhams J., Pharm. Technol., 1988, 6, 86-97.

Disposition of vancomycin in healthy volunteers from oral solution and semi-solid matrix capsules, Lucas R., Bowtle W. and Ryden R., Clin. Pharm. Ther., 1987, 12, 27-31.

Semi-solid matrix capsules, Bowtle W., Brit. J. Pharm. Pract., 1986, 8 , 307-308.

The application of semi-solid capsule technology to antibiotic formulations, Bowtle W., Boll Chim. Pharm., 1986, 125, 72-74.

Formulation and process studies in semi-solid matrix capsule technology, Bowtle W. and Lucas R., Fourth International Conference on Pharmaceutical Technology. 1986, Paris, 80-89.