R. E. Howard

Building a hierarchy with neural networks: an example-image vector quantization.

W. Hubbard, L. D. Jackel, R. E. Howard, 1987, Applied optics.

ELECTRON BEAM LITHOGRAPHY FROM 20 TO 120 kev WITH A HIGH QUALITY BEAM.

L. Jackel, H. Craighead, M. Feldman, 1983 .