@article{FAA_1987_21_1_a15,
     author = {S. A. Spirin},
     title = {$\mathbb{Z}^2$-graded modules with one-dimensional components over the {Lie} algebra $A_1^{(1)}$},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {84--85},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1987_21_1_a15/}
}