Lab notebooks
Additional papers Accession ARCH-2018-236
Low Frequency Propagation Studies - Report 1953-1956
Reports on Whistlers - Stanford Electronics Laboratories 1960-1962
Proposal tot he National Science Foundation for Magnetospheric Research in Antartica 1969 Nov 10
VLF wave growth and discrete emission... 1982
Journal Articles by Helliwell 1960-1996