Analysis IV  linear and boundary integral equations 
ed. by V.G. Maz'ya, S.M.Nikol'zkii 
 - Berlin  Springer-Verlag  1991 
 - 233p. 
 - Encyclopaedia of Mathematical Sciences  V.27 .
<br/><br/><label>ISBN: </label>3540519971 
<br/><br/><label>Dewey Class. No.: </label>515.72  / N892.4