@article{TMF_1996_107_3_a7,
     author = {E. Mann},
     title = {The perturbed {sine-Gordon} breather equation integrated by {Riemann's} method},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {439--449},
     publisher = {mathdoc},
     volume = {107},
     number = {3},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TMF_1996_107_3_a7/}
}