@article{MZM_1987_42_6_a7,
     author = {Zh. Kaidasov and E. V. Shishkin},
     title = {Isometric immersion in $E^3$ of extended strips on manifolds of type~$L$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {842--853},
     publisher = {mathdoc},
     volume = {42},
     number = {6},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1987_42_6_a7/}
}