Helen E. Coffey

Catalog of observation times of g...

Catalog of observation times of ground-based Skylab-coordinated solar observing programs

Year unknown

Collected data reports for STIP I...

Collected data reports for STIP Interval II

Year unknown Helen E. Coffey and John A. McKinnon

Collected data reports on August ...

Collected data reports on August 1972 solar-terrestrial events

Year unknown

Data compilation for the magnetos...

Data compilation for the magnetospherically quiet periods February 19-23 and November 29-December 3, 1970

Year unknown

Data on solar-geophysical activit...

Data on solar-geophysical activity associated with the major ground level cosmic ray events of 24 January and 1 September 1971

Year unknown

Solar-geophysical activity report...

Solar-geophysical activity reports for Stip Interval XV

Year unknown Helen E. Coffey and J. H. Allen