[MathOuvrage]
Regularity of free boundaries in obstacle-type problems
/ Petrosyan, Arshak ; Shahgholian, Henrik ; Uraltseva, Nina N..
-Providence RI : American mathematical Society, 2012. - x, 221 p. ; 26 cm
ISBN 9780821887943
[MathOuvrage]
Geometric scattering theory
/ Melrose, Richard B..
-Cambridge, Melbourne, New York NY : Cambridge university Press, 1995. - xi, 116 p. ; 23 cm