Korbel, Jan <br/><br/>
Polska ludność rodzima, migracje w przeszłości i w perspektywie - analiza uwarunkowań / 
Jan Korbel. 
 - Opole :  Instytut Ślaski,  1986. 
 - 213 p. ;  24 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Ethnology -- Poland -- Western and Northern Territories. Western and Northern Territories (Poland) -- History. Germany (West) -- Emigration and immigration -- History -- 20th century. Poland -- Emigration and immigration -- History -- 20th century. Polish people -- Germany (West) -- History -- 20th century. Immigrants -- Germany (West) -- History -- 20th century.