@article{TMF_1999_119_1_a1,
     author = {A. K. Pogrebkov and M. C. Prati},
     title = {An {Ablowitz{\textendash}Ladik} system with a discrete potential: {I.~Extended} resolvent},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {20--33},
     year = {1999},
     volume = {119},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1999_119_1_a1/}
}