Tikka, Kari S. (1990). Veropolitiikka. Publications of the Lawyers' Union. Tikka, Kari S., and Nykänen, Olli (1985). Yritysverotus 1. WSOY. . Tikka, Kari S., and Nykänen, Olli (1985). Yritysverotus 2. WSOY. . References 1944 births 2006 deaths People from Lahti Finnish scientists 20th-century Finnish lawyers Academic staff of the University of Helsinki Finnish murder victims People murdered in Finland 20th-century Finnish LGBT people