Berger, Tor and Øyan, Mats Jørgen and Hamran, Svein-Erik and Plettemeier, Dirk and Brovoll, Sverre and Eide, Jo > Ekkokardiografi or TermsetEmneord::Radar or TermsetEmneord::Frekvensmodulering or RIMFAX or Radar or Romfart > Article