@article{Kondej:2012,
author
=
"S.Kondej and J.Vaz, Jr.",
title
=
"Fractional Schrödinger operator with delta potential localized on circle",
journal
=
"Journal of Mathematical Physics",
volume
=
"Vol. 53",
pages
=
"033503-1-- 11",
year
=
"2012",
}