Since the feminist movement of the 1980s , some writers and publishers have been using the feminine title suffixes '' - in '' ( singular ) and '' - innen '' ( plural ) to emphasize the inclusion of females ; but written with a capital ` I ' , to indicate that males are not excluded .
Since the feminist movement of the 1980s , some writers and publishers have been using the feminine title suffixes '' - in '' ( singular ) and '' - innen '' ( plural ) to help boost the inclusion of women ; but written with a capital ` I ' , to indicate that males are not excluded .