SIBELIUS, Patrick <br/><br/>
Natural contradictions and the concept of action in mechanics 
/[by] Patrick Sibelius 
 - [S.l.]  ABO Academy press  1990 
 - xii, 186 p. 
<br/><br/> Includes appendix and index. 
<br/><br/><label>ISBN: </label>9519498613 
<br/><br/><label>Dewey Class. No.: </label>531  / SIB