%0 Journal Article %T Robert Helliwell, pioneer of whistler-mode research %A D. L. Carpenter %A U. S. Inan %J History of Geo- and Space Sciences (HGSS) %D 2012 %I Copernicus Publications %R 10.5194/hgss-3-73-2012 %X No abstract available. %U http://www.hist-geo-space-sci.net/3/73/2012/hgss-3-73-2012.html