@article{TMF_1973_15_1_a9,
     author = {I. G. Gochev},
     title = {Two-magnon states in a one-dimensional {Heisenberg} model with second-neighbor interaction},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {120--126},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1973_15_1_a9/}
}