@article{SIGMA_2009_5_a42,
     author = {Rafael de la Madrid},
     title = {The {Analytic} {Continuation} of the {Lippmann{\textendash}Schwinger} {Eigenfunctions,} and {Antiunitary} {Symmetries}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2009},
     volume = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2009_5_a42/}
}