Cristina, Jan <br/><br/>
Non-smooth curvature and the energy of frames / 
Jan Cristina. 
 -  Suomalainen Tiedeakatemia,  2013. 
 - 90 s. ;    25 cm. 
 - 	Annales Academiae Scientiarum Fennicae., Mathematica., Dissertationes ;  159 .
<br/><br/> Dissertation : Thesis (doctoral)--University of Helsinki, 2013. 
<br/><br/>Includes bibliogr. references : p.  89-90. 
<br/><br/><label>ISBN: </label>9789514110740 9789514110749 
<br/><br/><label>Subjects--Index Terms: </label>მათემატიკა  დისერტაციები 
<br/><br/><label>Universal Decimal Class. No.: </label>51(043)