D. Kim

Transmission microscropy of unmodified biological materials: comparative radiation dosages with electrons and ultrasoft x-ray photons.

R Feder, D Sayre, J Kirz, 1977, Ultramicroscopy.

Potential operating region for ultrasoft x-ray microscopy of biological materials.

R Feder, D Sayre, J Kirz, 1977, Science.

Coherent states forr-level atoms

P. Arecchi, E. Gilmore, D. Kim, 1973 .