Solar observations made at Cataria Astrophysical Observatory during 1990 
edited by M. Ternullo                                            
 - Sicily  Catania Astrophysical Observatory  1994 
 - 126p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Solar Observations<br/>Sunspots
<br/><br/><label>Universal Decimal Class. No.: </label>523.982-13  / TER