Halecki, Oskar <br/><br/>
From Florence to Brest (1439-1596) / 
Oscar Halecki. 
 - Rome :  Sacrum Poloniae Millennium,  1958. 
 - 444 s. ;  29 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Orthodox Eastern Church -- Relations -- Catholic Church Catholic Church -- Relations -- Orthodox Eastern Church Council of Florence -- 1438-1445 Union of Brest -- 1596