fortnightly

joka toinen viikko

joka toinen viikko pidettävä a publication issued fortnightly (once every two weeks); a biweekly bi-weekly (one sense)
occurring once in a fortnight; once every two weeks
once in a fortnight; once every two weeks
1970, w:Lee Smith (fiction author)|Lee Smith, "Between the Lines", as reprinted in, 2010, Mrs. Darcy and the Blue-Eyed Stranger, 2011 paperback edition, ISBN 9781616200497, page 184 http://books.google.com/books?id=_h_BERi4Js8C&pg=PA184&dq=fortnightly:

That's where my column appears, in the Greenville Herald, fortnightly.