1. V. G. Dudnikov and A. L. Shabalin, ?Electrohydrodynamic ion emitters,? Prikl. Mekh. Tekh. Fiz., No. 2 (1990).
2. J. Melngailis, ?Focused ion beam technology and application,? J. Vac. Sci. Technol.,B5, No. 2 (1987).
3. A. L. Shabalin, ?Size of the emission zone in an electrohydrodynamic ion emitter,? Dokl. Akad. Nauk SSSR,303, No. 2 (1988).
4. V. P. Kovalenko and A. L. Shabalin, ?Lower current limit in EHD-emitters,? Pis'ma Zh. Tekh. Fiz.,15, No. 6 (1989).
5. E. V. Myuller and T. T. Tsong, Field Ion Microscopy [in Russian], Nauka, Moscow (1980).