@article{SIGMA_2022_18_a10,
     author = {Igor Khavkine},
     title = {Explicit {Triangular} {Decoupling} of the {Separated} {Lichnerowicz} {Tensor} {Wave} {Equation} on {Schwarzschild} into {Scalar} {Regge{\textendash}Wheeler} {Equations}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2022},
     volume = {18},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2022_18_a10/}
}