%0 Journal Article
%T On the frequency of auroras over Germany
%A Schr£¿der
%A Wilfried
%J Geof¨ªsica internacional
%D 2011
%I Universidad Nacional Aut¨®noma de M¨¦xico
%X a compilation of 171 german auroral observations between 1946 and 1964, not published previously, is presented. the data are analysed with respect to the kp-index, sunspot numbers and seasonal variation. also we include the full list of such observations.
%K aurora
%K mid-latitudes
%K geomagnetic activity.
%U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S0016-71692011000400006&lng=en&nrm=iso&tlng=en