Kowalczyk, Stanisław <br/><br/>
The "w"-problem 
 omega-problem 
Stanisław Kowalczyk 
 - 55 S. 
 - Dissertationes mathematicae  501 .
 -  501 .
 - Dissertationes mathematicae  501 .
<br/><br/> Literaturverz.: S. 54 - 55 
<br/><br/><label>Patent No.: </label>790391708 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>409641804  DE-576 885415666  US-OCoLC 
<br/><br/><label>Subjects--Index Terms: </label>