@article{FPM_2014_19_1_a0,
     author = {A. N. Abyzov and A. A. Tuganbaev},
     title = {Modules in which sums or intersections of two direct summands are direct summands},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {3--11},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2014_19_1_a0/}
}