Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MM2_1997__93_4_156305, author = {Martin Engman}, title = {Trace {Formulae} for {S1} invariant {Green's} {Operators} on {S2.}}, journal = {Manuscripta mathematica}, pages = {357--368}, publisher = {mathdoc}, volume = {93}, number = {4}, year = {1997}, zbl = {0882.58056}, url = {http://geodesic.mathdoc.fr/item/MM2_1997__93_4_156305/} }
Martin Engman. Trace Formulae for S1 invariant Green's Operators on S2.. Manuscripta mathematica, Tome 93 (1997) no. 4, pp. 357-368. http://geodesic.mathdoc.fr/item/MM2_1997__93_4_156305/