I am looking for a specific paper, that I have found very difficult to trace.


*C. De Concini, V. Kac - Quantum Groups at roots of 1*


Specifically, the paper is cited as follows (on De Concini's webpage).


*De Concini, Corrado; Kac, Victor G. Representations of quantum groups at roots of 1.
Operator algebras, unitary representations, enveloping algebras, and invariant theory 
(Paris, 1989), 471--506, Progr. Math., 92, Birkhäuser Boston, Boston, MA, 1990.*


I have seen it cited many times, which seems to suggest that there should be (digital?) copies available. Nevertheless, I have not been able to track the paper down. 


It is perhaps important to note that there seems to be another possible source to find the paper.


*De Concini, Corrado; Kac, Victor G. Representations of quantum groups at roots of 1.
Modern quantum field theory (Bombay, 1990), 333--335, World Sci. Publishing, River
Edge, NJ, 1991.*


However, my University does not provide access to World. Sci. Publishing books, and hence the article remains hidden behind a $58 fee. 


Any help in obtaining a copy of this paper would be much appreciated.



Help finding paper: De Concini, Kac - Quantum Groups at roots of 1
I was facing the same problem recently and I just found a copy of this paper at this link:<http://www.math.harvard.edu/~yfu/Kac-DeConcini.pdf>.


