@article{DAN_1960_131_3_a3,
     author = {Ya. P. Blank},
     title = {Surfaces carrying $\infty^2$ conical nets},
     journal = {Doklady Akademii Nauk},
     pages = {482--484},
     publisher = {mathdoc},
     volume = {131},
     number = {3},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_131_3_a3/}
}