@article{MAT_1959_3_6_a7,
     author = {A. Newlander and L. Nirenberg},
     title = {Complex analytic coordinates in almost complex manifolds},
     journal = {Matematika},
     pages = {131--144},
     publisher = {mathdoc},
     volume = {3},
     number = {6},
     year = {1959},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1959_3_6_a7/}
}