XXIII general assembly of the International Union of Radio Science URSI abstracts   v. 1, 28 August - 5 September 1990 

 - Prague  Publication Committee of the Czechoslovak Organising Committee  1990 
 - xvii+301p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>UrsiSpace Science
<br/><br/><label>Universal Decimal Class. No.: </label>537.8  / COC