H. J. Walker

Multi-aperture photometry of extended IR sources with ISOPHOT - I. The nature of extended IR emission of planetary nebulae (2006)

Klaas, U., Walker, H. J., Müller, T. G., Richards, P. J., Schreiber, J.

Multi-aperture photometry of extended IR sources with ISOPHOT. I. The nature of extended IR emission of planetary Nebulae (2006)

Klaas, U., Walker, H. J., Müller, T. G., Richards, P. J., Schreiber, J.

Context: .ISOPHOT multi-aperture photometry is an efficient method to resolve compact sources or to detect extended emission down to relatively faint levels with single detectors in the wavelength...

ISOPHOT far-infrared photometry of NGC 3079 (2002)

Klaas, U., Walker, H. J.

The changing nature of man's quest for food and water as related to snow, ice, and permaforst in the American Arctic. (1971)

Walker, H. J.

Microfilm-xerography.

A study of the rainfall of Mexico / (1954)

Walker, H. J.

Thesis (M.A. in Geography)--University of California, Berkeley, Jan. 1954.