@article{10_2298_FIL2208573G,
     author = {Zhitao Guo},
     title = {Bilateral upper-left shifts on double sequence spaces},
     journal = {Filomat},
     pages = {2573 },
     year = {2022},
     volume = {36},
     number = {8},
     doi = {10.2298/FIL2208573G},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL2208573G/}
}